Add action to hide all globe trails when approaching a planet/moon

data/assets/actions/toggle_globe_trails.asset

@@ -0,0 +1,57 @@
+local hide_trails = {
+  Identifier = "os.hide_all_globe_trails",
+  Name = "Hide All Trails (Planets and Moons)",
+  Command = [[
+    openspace.printInfo('Hide all trails')
+
+    local list = openspace.getProperty('{planetTrail_solarSystem}.Renderable.Enabled');
+    for _,v in pairs(list) do 
+      -- openspace.setPropertyValueSingle(v, not openspace.getPropertyValue(v)) 
+      openspace.setPropertyValueSingle(v, false) 
+    end
+
+    local moonlist = openspace.getProperty('{moonTrail_solarSystem}.Renderable.Enabled'); 
+    for _,v in pairs(moonlist) do 
+      openspace.setPropertyValueSingle(v, false) 
+    end
+  ]],
+  Documentation = [[Set the visiblility of the trials of all the moons and planets in 
+  our solar system to false.]],
+  GuiPath = "/Trails",
+  IsLocal = true
+}
+asset.export("hide_trails", hide_trails.Identifier)
+
+local show_trails = {
+  Identifier = "os.show_all_globe_trails",
+  Name = "Show All Trails (Planets and Moons)",
+  Command = [[
+    openspace.printInfo('Show all trails')
+
+    local list = openspace.getProperty('{planetTrail_solarSystem}.Renderable.Enabled');
+    for _,v in pairs(list) do 
+      -- openspace.setPropertyValueSingle(v, not openspace.getPropertyValue(v)) 
+      openspace.setPropertyValueSingle(v, true) 
+    end
+
+    local moonlist = openspace.getProperty('{moonTrail_solarSystem}.Renderable.Enabled'); 
+    for _,v in pairs(moonlist) do 
+      openspace.setPropertyValueSingle(v, true) 
+    end
+  ]],
+  Documentation = [[Set the visiblility of the trials of all the moons and planets in 
+    our solar system to true.]],
+  GuiPath = "/Trails",
+  IsLocal = true
+}
+asset.export("show_trails", show_trails.Identifier)
+
+asset.onInitialize(function()
+  openspace.action.registerAction(show_trails)
+  openspace.action.registerAction(hide_trails)
+end)
+
+asset.onDeinitialize(function()
+  openspace.action.removeAction(show_trails.Identifier)
+  openspace.action.removeAction(hide_trails.Identifier)
+end)

data/assets/events/toggle_globe_trails.asset

@@ -0,0 +1,27 @@
+local action = asset.require('actions/toggle_globe_trails')
+
+asset.onInitialize(function()
+  openspace.event.registerEventAction(
+    "CameraFocusTransition",
+    action.show_trails,
+    { Transition = "Exiting" }
+  );
+  openspace.event.registerEventAction(
+    "CameraFocusTransition",
+    action.hide_trails,
+    { Transition = "Approaching" }
+  );
+end)
+
+asset.onDeinitialize(function()
+  openspace.event.unregisterEventAction(
+    "CameraFocusTransition",
+    action.show_trails,
+    { Transition = "Exiting" }
+  );
+  openspace.event.unregisterEventAction(
+    "CameraFocusTransition",
+    action.hide_trails,
+    { Transition = "Approaching" }
+  );
+end)

data/profiles/spaceship.profile

@@ -44,6 +44,7 @@
   ],
   "assets": [
     "base",
+    "events/toggle_globe_trails",
     "scene/solarsystem/planets/earth/earth",
     "scene/solarsystem/planets/earth/satellites/satellites",
     "util/joysticks/T.A320 Pilot",