I reassigned the keyboard shortcut ctrl-t to be camera Top view. It works fine until I close and restart Sketchup. Then ctrl-t has reverted back to the default. I can assign it again and it works fine until I close and restart Sketchup again.

Is there a way to make this keyboard shortcut stick?

If I assign it and then save my Preferences file I find lines for other shortcuts I've assigned, but I don't find a line for viewTop it the .dat file so that seems strange also.

1 0 0 B viewBottom:
0 0 0 Z viewZoomExtents:
1 0 0 F viewFront:
1 0 0 R viewRight:
1 0 0 G viewIso:
etc.,
but no viewTop

I'm using Sketchup Make v14.1.1282 (I know it's an old version and I'd like to use v15, but my laptop is still running Vista so I can't upgrade yet.)

Thanks
-marc