[Feature Request] Add "Hide Preview Pane" toggle to Dash/TileStyle editor

See this tiny grey arrow (that I only just discovered last week)?

I would LOVE to see such a toggle added to the other Dash- and TileStyle-editing dialogue windows, so I could effectively regain much-needed screen real estate … especially once I’ve begun compiling more than a handful of TileStyles. I’d rather have extra space to navigate the controls at times.

Thanks!

It was you who asked for it… and thanked me for its inclusion !!

Ha. Now I need MOAR ARROWWW.