@@ -33,7 +33,7 @@ displayClass.updateEIS = func {

                 .setText(psi == nil ? '--' : sprintf('%u', psi));

             me.screenElements['OIL-TEMP-text']

                 .setText(sprintf('%i', getprop('/engines/engine/oil-temperature-degf')));

-            var full = getprop('/instrumentation/zkv1000/eis/fuel-qty-at-start');

+            var full = eis.getValue('fuel-qty-at-start');

             var right = getprop('/consumables/fuel/tank/level-gal_us');

             var left = getprop('/consumables/fuel/tank[1]/level-gal_us');

             var used_fuel = full - (right + left);

@@ -9,7 +9,7 @@ var buttonsClass = {

     },

     AsSwitchNAV : func {

-        var n = getprop('/instrumentation/zkv1000/radios/nav-tune');

+        var n = radios.getValue('nav-tune');

         var tmp = getprop('/instrumentation/nav[' ~ n ~ ']/frequencies/selected-mhz');

         setprop('/instrumentation/nav[' ~ n ~ ']/frequencies/selected-mhz', getprop('/instrumentation/nav[' ~ n ~ ']/frequencies/standby-mhz'));

         setprop('/instrumentation/nav[' ~ n ~ ']/frequencies/standby-mhz', tmp);

@@ -26,8 +26,8 @@ var buttonsClass = {

             var pressed = getprop('/sim/time/elapsed-sec') - me.AsSwitchCOM_pushed;

             if (pressed > 2) {

                 setprop('/instrumentation/comm/frequencies/selected-mhz', 121.500);

-                setprop('/instrumentation/zkv1000/radios/comm1-selected', 1);

-                setprop('/instrumentation/zkv1000/radios/comm2-selected', 0);

+                radios.setValue('comm1-selected', 1);

+                radios.setValue('comm2-selected', 0);

                 foreach (var d; keys(flightdeck))

                     if (contains(flightdeck[d], 'display')) {

                         flightdeck[d].display.updateCOMM({refresh: 1});

@@ -35,7 +35,7 @@ var buttonsClass = {

                     }

             }

             else {

-                var c = getprop('/instrumentation/zkv1000/radios/comm-tune');

+                var c = radios.getValue('comm-tune');

                 var tmp = getprop('/instrumentation/comm[' ~ c ~ ']/frequencies/selected-mhz');

                 setprop('/instrumentation/comm[' ~ c ~ ']/frequencies/selected-mhz', getprop('/instrumentation/comm[' ~ c ~ ']/frequencies/standby-mhz'));

                 setprop('/instrumentation/comm[' ~ c ~ ']/frequencies/standby-mhz', tmp);

@@ -48,7 +48,7 @@ var buttonsClass = {

     ALT : func () {

         var alt = getprop('instrumentation/altimeter/indicated-altitude-ft');

-        setprop('/instrumentation/zkv1000/afcs/selected-alt-ft', math.round(alt, 10));

+        afcs.setIntValue('selected-alt-ft', math.round(alt, 10));

     },

     ValidateTMRREF : func (a = 0) {

@@ -16,7 +16,7 @@ var setListeners = func {

             }, 1, 2);

     # keep this listener as long as the code is to heavy to be modified in multiple places

-    prop = '/instrumentation/zkv1000/afcs/selected-alt-ft';

+    prop = afcs.getNode('selected-alt-ft').getPath();

     data.listeners[prop] = setlistener(prop,

             func (n) {

                 var val = n.getValue();

@@ -77,7 +77,7 @@ var deviceClass = {

         foreach (var v; ['Vx', 'Vy', 'Vr', 'Vglide'])

             m.data[v ~ '-visible'] = 1;

         foreach (var v; ['screen-object', 'screen-view', 'screen-size'])

-            m.data[v] = getprop('/instrumentation/zkv1000/' ~ name ~ '/' ~ v);

+            m.data[v] = getprop(zkv.getPath() ~ '/' ~ name ~ '/' ~ v);

         m.display  = displayClass.new(m);

         m.softkeys = softkeysClass.new(m);

@@ -149,7 +149,7 @@ var deviceClass = {

         }

         m.display.showInitProgress();

-        setprop('/instrumentation/zkv1000/' ~ m.name ~ '/status', 1);

+        setprop(zkv.getPath() ~ '/' ~ m.name ~ '/status', 1);

         msg(m.name ~ ' switched on!');

         return m;

     },

@@ -151,9 +151,9 @@ var displayClass = {

                 canvas.parsesvg(m.screen, data.zkv1000_reldir ~ 'Models/PFD.svg');

             }

             else {

-                var eis_file = getprop('/instrumentation/zkv1000/eis/type');

+                var eis_file = eis.getValue('type');

                 if (eis_file == nil)

-                    eis_file = getprop('/instrumentation/zkv1000/eis/file');

+                    eis_file = eis.getValue('file');

                 if (eis_file != nil) {

                     if (find('/', eis_file) == -1)

@@ -829,7 +829,7 @@ var displayClass = {

 # moves the heading bug and display heading-deg for 3 seconds (PFD) {{{

         if (me.device.role == 'MFD')

             return;

-        var hdg = getprop('/instrumentation/zkv1000/afcs/heading-bug-deg');

+        var hdg = afcs.getValue('heading-bug-deg');

         me.screenElements['Heading-bug']

             .setRotation(hdg * D2R);

         me.screenElements['SelectedHDG-bg']

@@ -847,10 +847,10 @@ var displayClass = {

 # TODO: update display for NAV/GPS/BRG courses {{{

         if (me.device.role == 'MFD')

             return;

-        var source = getprop('/instrumentation/zkv1000/cdi/source');

+        var source = cdi.getValue('source');

         if (source == 'OFF')

             return;

-        var crs = getprop('/instrumentation/zkv1000/cdi/course');

+        var crs = cdi.getValue('course');

         if (crs == nil)

             return;

         me.screenElements['SelectedCRS-bg']

@@ -869,7 +869,7 @@ var displayClass = {

 # animation for altitude section, called via updatedALT {{{

         if (! me.screenElements['SelectedALT'].getVisible())

             return;

-        var selected_alt = getprop('/instrumentation/zkv1000/afcs/selected-alt-ft');

+        var selected_alt = afcs.getValue('selected-alt-ft');

         var delta_alt = data.alt - selected_alt;

         if (abs(delta_alt) > 300)

             delta_alt = 300 * abs(delta_alt)/delta_alt;

@@ -887,7 +887,7 @@ var displayClass = {

     updateCDI : func {

 # animation for CDI {{{

-        var source = getprop('/instrumentation/zkv1000/cdi/source');

+        var source = cdi.getValue('source');

         if (source == 'OFF') {

             foreach (var s; ['GPS', 'NAV1', 'NAV2'])

                 foreach (var t; ['pointer', 'CDI'])

@@ -898,7 +898,7 @@ var displayClass = {

             me.screenElements['CDI'].hide();

         }

         else {

-            var course = getprop('/instrumentation/zkv1000/cdi/course');

+            var course = cdi.getValue('course');

             var rot = (course - data.hdg) * D2R;

             me.screenElements['CDI']

                 .setRotation(rot)

@@ -917,13 +917,13 @@ var displayClass = {

                     .setVisible(source == s);

                 foreach (var f; ['FROM', 'TO'])

                     me.screenElements[s ~ '-' ~ f]

-                        .setVisible(s == source and getprop('/instrumentation/zkv1000/cdi/' ~ f ~ '-flag'));

+                        .setVisible(s == source and cdi.getValue(f ~ '-flag'));

                 me.screenElements['CDI-SRC-text']

                     .setText(source)

                     .setColor(source == 'GPS' ? me.colors.magenta : me.colors.green)

                     .show();

             }

-            var deflection = getprop('/instrumentation/zkv1000/cdi/course-deflection');

+            var deflection = cdi.getValue('course-deflection');

             if (left(source, 3) == 'NAV')

                 var scale = deflection / 4;

             else { # GPS

@@ -982,7 +982,7 @@ var displayClass = {

         }

         if (contains(arg[0], 'set')) {

             # positionne la valeur modifiée, les listeners "trigguent" en permanence ces propriétés, donc exit

-            var n = getprop('/instrumentation/zkv1000/radios/' ~ arg[0]._r ~ '-tune');

+            var n = radios.getValue(arg[0]._r ~ '-tune');

             var fmt = (arg[0]._r == 'nav') ? '%.2f' : '%.3f';

             me.screenElements[arg[0]._r ~ (n + 1) ~ '-standby-freq']

                 .setText(sprintf(fmt, getprop('/instrumentation/' ~ arg[0]._r ~ '[' ~ n ~ ']/frequencies/standby-mhz')));

@@ -1065,8 +1065,8 @@ var displayClass = {

         for (var d = 0; d < 4; d+=1)

             me.screenElements['XPDR-DIGIT-' ~ d ~ '-text']

                 .setText(sprintf('%i', getprop('/instrumentation/transponder/inputs/digit[' ~ d ~ ']')));

-        var tuning = getprop('/instrumentation/zkv1000/radios/xpdr-tuning-digit');

-        var fms = getprop('/instrumentation/zkv1000/radios/xpdr-tuning-fms-method');

+        var tuning = radios.getValue('xpdr-tuning-digit');

+        var fms = radios.getValue('xpdr-tuning-fms-method');

         for (var d = 0; d < 4; d+=1)

             me.screenElements['XPDR-DIGIT-' ~ d ~ '-text']

                 .setColor(1,1,1);

@@ -1081,7 +1081,7 @@ var displayClass = {

             if (getprop('/instrumentation/transponder/ident'))

                 var mode = 'IDENT';

             else

-                var mode = getprop('/instrumentation/zkv1000/radio/xpdr-mode');

+                var mode = radios.getValue('xpdr-mode');

             var wow = getprop('/gear/gear/wow');

             if (! wow and mode != 'STBY')

                 var color = [0, 1, 0];

@@ -7,12 +7,12 @@ var knobsClass = {

     XPDRCodeSetDigits : func (d) {

         # disable SoftKey entering method

-        setprop('/instrumentation/zkv1000/radios/xpdr-tuning-fms-method', 1);

+        radios.setValue('xpdr-tuning-fms-method', 1);

         if (!contains(me.device.softkeys.bindings.PFD.XPDR.CODE, 'on_change_inactivity')) {

             me.device.softkeys.bindings.PFD.XPDR.CODE.inactivity.stop();

             me.device.softkeys.bindings.PFD.XPDR.CODE.on_change_inactivity = maketimer(10,

                 func {

-                    setprop('/instrumentation/zkv1000/radios/xpdr-tuning-digit', 3);

+                    radios.setValue('xpdr-tuning-digit', 3);

                     call(me.device.softkeys.bindings.PFD.XPDR.CODE.restore, [], me);

                 });

             me.device.softkeys.bindings.PFD.XPDR.CODE.on_change_inactivity.singleShot = 1;

@@ -20,7 +20,7 @@ var knobsClass = {

         }

         else

             me.device.softkeys.bindings.PFD.XPDR.CODE.on_change_inactivity.restart(10);

-        var digit = getprop('/instrumentation/zkv1000/radios/xpdr-tuning-digit');

+        var digit = radios.getValue('xpdr-tuning-digit');

         var code = getprop('/instrumentation/transponder/id-code');

         if (digit == 3)

             var val = int(code/100) + d;

@@ -46,12 +46,12 @@ var knobsClass = {

     },

     XPDRCodeNextDigits : func {

-        setprop('/instrumentation/zkv1000/radios/xpdr-tuning-fms-method', 1);

+        radios.setValue('xpdr-tuning-fms-method', 1);

         if (!contains(me.device.softkeys.bindings.PFD.XPDR.CODE, 'on_change_inactivity')) {

             me.device.softkeys.bindings.PFD.XPDR.CODE.inactivity.stop();

             me.device.softkeys.bindings.PFD.XPDR.CODE.on_change_inactivity = maketimer(10,

                 func {

-                    setprop('/instrumentation/zkv1000/radios/xpdr-tuning-digit', 3);

+                    radios.setValue('xpdr-tuning-digit', 3);

                     call(me.device.softkeys.bindings.PFD.XPDR.CODE.restore, [], me);

                 });

             me.device.softkeys.bindings.PFD.XPDR.CODE.on_change_inactivity.singleShot = 1;

@@ -59,7 +59,7 @@ var knobsClass = {

         }

         else

             me.device.softkeys.bindings.PFD.XPDR.CODE.on_change_inactivity.restart(10);

-        setprop('/instrumentation/zkv1000/radios/xpdr-tuning-digit', 1);

+        radios.setValue('xpdr-tuning-digit', 1);

         me.device.display.updateXPDR();

     },

@@ -16,13 +16,13 @@ var radios_list = [

 var setNavTune = func {

     var freq = radios.getNode('nav-freq-mhz', 1);

     freq.unalias();

-    freq.alias(radios_list[getprop('/instrumentation/zkv1000/radios/nav-tune')]);

+    freq.alias(radios_list[radios.getValue('nav-tune')]);

 }

 var setCommTune = func {

     var freq = radios.getNode('comm-freq-mhz', 1);

     freq.unalias();

-    freq.alias(radios_list[getprop('/instrumentation/zkv1000/radios/comm-tune') + 4]);

+    freq.alias(radios_list[radios.getValue('comm-tune') + 4]);

 }

 var aliases = {

@@ -261,19 +261,19 @@ var softkeysClass = {

                 STBY : func {

                     setprop('/instrumentation/transponder/ident', 0);

                     setprop('/instrumentation/transponder/knob-mode', 1);

-                    setprop('/instrumentation/zkv1000/radio/xpdr-mode', 'STBY');

+                    radios.setValue('xpdr-mode', 'STBY');

                     me.device.display.updateXPDR();

                 },

                 ON : func {

                     setprop('/instrumentation/transponder/ident', 1);

                     setprop('/instrumentation/transponder/knob-mode', 4);

-                    setprop('/instrumentation/zkv1000/radio/xpdr-mode', 'ON');

+                    radios.setValue('xpdr-mode', 'ON');

                     me.device.display.updateXPDR();

                 },

                 ALT : func {

                     setprop('/instrumentation/transponder/ident', 1);

                     setprop('/instrumentation/transponder/knob-mode', 5);

-                    setprop('/instrumentation/zkv1000/radio/xpdr-mode', 'ALT');

+                    radios.setValue('xpdr-mode', 'ALT');

                     me.device.display.updateXPDR();

                 },

                 VFR : func {

@@ -285,7 +285,7 @@ var softkeysClass = {

                 },

                 CODE : {

                     '0' : func (n = 0) {

-                        if (getprop('/instrumentation/zkv1000/radios/xpdr-tuning-fms-method'))

+                        if (radios.getValue('xpdr-tuning-fms-method'))

                             return;

                         me.device.display.timers2.softkeys_inactivity.stop();

                         me.bindings.PFD.XPDR.CODE.inactivity.restart(me.device.display.softkeys_inactivity_delay);

@@ -297,7 +297,7 @@ var softkeysClass = {

                         if (!contains(me.bindings.PFD.XPDR.CODE, 'on_change_inactivity')) {

                             me.bindings.PFD.XPDR.CODE.on_change_inactivity = maketimer(10,

                                 func {

-                                    setprop('/instrumentation/zkv1000/radios/xpdr-tuning-digit', 3);

+                                    radios.setValue('xpdr-tuning-digit', 3);

                                     me.device.knobs.FmsInner = me.device.knobs.XPDRCodeSetDigits;

                                     me.device.knobs.FmsOuter = me.device.knobs.XPDRCodeNextDigits;

                                     call(me.bindings.PFD.XPDR.CODE.restore, [], me);

@@ -350,7 +350,7 @@ var softkeysClass = {

                         call(me.bindings.PFD.IDENT, [], me);

                     },

                     BKSP: func {

-                        if (getprop('/instrumentation/zkv1000/radios/xpdr-tuning-fms-method'))

+                        if (radios.getValue('xpdr-tuning-fms-method'))

                             return;

                         if (contains(me.bindings.PFD.XPDR.CODE, 'on_change_inactivity'))

                             me.bindings.PFD.XPDR.CODE.on_change_inactivity.restart(10);

@@ -371,7 +371,7 @@ var softkeysClass = {

                     },

                     restore : func {

                         setprop('/instrumentation/transponder/id-code',

-                            sprintf('%s', getprop('/instrumentation/zkv1000/radios/xpdr-backup-code')));

+                            sprintf('%s', radios.getValue('xpdr-backup-code')));

                         me.device.display.updateXPDR();

                     },

                     exit : func (p) {

@@ -395,7 +395,7 @@ var softkeysClass = {

                             func call(me.bindings.PFD.XPDR.CODE.BACK, [], me));

                         me.bindings.PFD.XPDR.CODE.inactivity.singleShot = 1;

                         me.bindings.PFD.XPDR.CODE.inactivity.start();

-                        var tuning = getprop('/instrument/zkv1000/radios/xpdr-tuning-digit');

+                        var tuning = radios.getValue('xpdr-tuning-digit');

                         if (tuning == nil) {

                             radios.getNode('xpdr-tuning-digit', 1).setValue(3);

                             radios.getNode('xpdr-backup-code', 1).setValue(getprop('/instrumentation/transponder/id-code'));

@@ -408,7 +408,7 @@ var softkeysClass = {

                 },

             },

             IDENT : func {

-                if (getprop('/instrumentation/zkv1000/radio/xpdr-mode') == 'STBY')

+                if (radios.getValue('xpdr-mode') == 'STBY')

                     return;

                 setprop('/instrumentation/transponder/ident', 1);

                 me.bindings.PFD.XPDR.ident = maketimer(18,

@@ -105,12 +105,12 @@ var init_props = func {

     alerts.getNode('alert', 1).setBoolValue(0);

     alerts.getNode('message', 1).setValue('');

     foreach (var v; ['Vx', 'Vy', 'Vr', 'Vglide', 'Vne']) {

-        var speed = getprop('/instrumentation/zkv1000/alerts/' ~ v);

+        var speed = alerts.getValue(v);

         data[v] = speed != nil ? speed : 9999;

     }

-    var aoa = getprop('/instrumentation/zkv1000/alerts/stall-aoa');

+    var aoa = alerts.getValue('stall-aoa');

     data['stall-aoa'] = (aoa == nil or aoa == 0) ? 9999 : aoa;

-    aoa = getprop('/instrumentation/zkv1000/alerts/approach-aoa');

+    aoa = alerts.getValue('approach-aoa');

     if (aoa != nil)

         data['approach-aoa'] = aoa;

@@ -157,7 +157,7 @@ var init_props = func {

     props.globals.getNode('/instrumentation/transponder/id-code',1).setIntValue(1200);

     props.globals.getNode('/instrumentation/transponder/serviceable',1).setBoolValue(1);

-    props.globals.getNode('/autopilot/settings/heading-bug-deg', 1).alias('/instrumentation/zkv1000/afcs/heading-bug-deg');

+    props.globals.getNode('/autopilot/settings/heading-bug-deg', 1).alias(afcs.getNode('heading-bug-deg').getPath());

     props.globals.getNode('/autopilot/settings/target-altitude-ft',1).setDoubleValue(0.0);

     props.globals.getNode('/autopilot/settings/target-speed-kt',1).setDoubleValue(0.0);

     props.globals.getNode('/autopilot/settings/vertical-speed-fpm',1).setDoubleValue(0.0);