Enhancement request: dry-run mode

[TheGoldenGriffin]

I called it clear FoW cuz the discussion was about a solution to prevent using the suggested undo button to peek into the FoW and undo. But since the effect of the button is not limited to seeing whats in the FoW, the name should be changed.

The only way to move a unit into the FoW is to Mobi it there or grow thorn patches. If you want to move or grow something in the FoW, you'd have to see whats there, so the player would get a "you must confirm your moves before changing the FoW" message first.

Bombshell would still work normally because attacking confirms all moves so you wouldn't be able to undo anyway

Killing a mother thorn patch would require attacking and therefore confirming all moves so killing thorn parch chains would work like it works now