I think I have seen the idea somewhere before in some forum posting but it clearly has never been put into practice. It sure would be nice if it could either be added to WME directly or the the WME add on:
A "layer is turned on indicator" that would ALWAYS be visible on the screen as a reminder to us as to which layers are currently 'turned on'.
I say this because sometimes a layer gets turned off but I don't realize it, such as the 'Map Problems' layer or the 'Update Requests' layer. When this happens, I may miss seeing a problem or a request.
I don't know the easiest place to put the idea in.
Perhaps a whole new add-on, perhaps build into the excellent WME add on, or even 'DIRECTLY into WME.'
Perhaps this pictures will spark some interest in 'making it happen.'