Persistent Terrain Grid Seperate From Layers

When I play I always show the terrain grid, however, always having to have the layers window open is a bit of a pain, and I lose some screen real estate. Plus, accidentally hitting ESC will close it and I have to reshow it. A more persistent option to 'Always Show Terrain Grid' would be really helpful.

An arrow could be added to the layers window to minimize it to the left. Or closing the window should not hide or disable anything.
The options should always work, when the window is closed or open.

I came here to make this exact request