let Shift-Space open property browser

Nasal/gui.nas

@@ -840,6 +840,7 @@ debug_keys = {
         { name : "Shift-F3",  desc : "load panel" },
         { name : "Shift-F4",  desc : "reload global preferences" },
         { name : "Shift-F9",  desc : "toggle FDM data logging" },
+        { name : "Shift-Space", desc : "open property browser" },
     ],
 };
 

keyboard.xml

@@ -253,6 +253,12 @@ calculated by adding 256 to the GLUT key value in glut.h.
     <script>props.setAll("/controls/engines/engine", "starter", 0)</script>
    </binding>
   </mod-up>
+  <mod-shift>
+   <binding>
+    <command>nasal</command>
+    <script>gui.property_browser()</script>
+   </binding>
+  </mod-shift>
  </key>
 
  <key n="33">