TL;DR

The upgrade planner should allow you to upgrade tiles, e.g. from stone bricks to concrete.

Why?

When I research concrete and refined concrete I like to replace all of the old tiles (stone bricks or concrete) with the newer, better tiles.
This would easily be done with the upgrade planner.

There is no option to restore singular control keybinds to their default, which would be useful. Currently, the only way to restore a control to its default is to use the red button in the top-right of the settings window, which resets all keybinds to their default. I propose there should be a ...