Add an "advanced keyboard shortcut" for dynamic lighting layer

This one should be really easy to implement: As a GM I want to type a key to switch to the dynamic lightning layer. I often need to "open doors" by switching to the lighting layer, remove the line I created for a door and then switch back to the objects layer with the "O" key. There are also already keys for the gm-layer "K", and the map layer "M". Please also add a keyboard shortcut for the lighting layer. ("L" is already in use, but I'm sure you'll find a good shortcut key)

Seconded, I use the same keyboard shortcuts constantly and would love to see this! maybe ",", since it is close to the three keys already in use?

Or 'L'. That puts it right next to the one for the GM layer ('K') and close to the others ('M' and 'O'), and 'L' is a good mnemonic for Dynamic L ighting.

Excellent!

I would love to be able to have the option to move an object to and from the dynamic lighting layer. Currently I can select a line segment on the lighting layer and move it to the GM layer using the shortcuts, but there is no way to move it back.

Great!