I'm trying to bind Move, Interact, and Attack to my Right Mouse Button (the idea being to have the game control like a modern RTS) but the control options won't let me. I can bind them to the left mouse button just fine, but not the right.

Hey Octopete, it is a little different when binding mouse buttons in the controls menu, because when you click on the function you want to rebind, it goes back to the 'SET' option. So if you want to rebind an action with a mouse button, you have to click the area so it says Set, then click on the wood portion of the menu so it records that input without resetting to the Set position.

And make sure to be careful with reassigning mouse button inputs. There is a current issue where you can assign a single input to multiple actions which can cause problems to arise.  If you ever need to reset the controls to default, you can do so in the main menu.

If you have any problems with this or need a better explanation, feel free to ask!