Hi, I only recently noticed how to open the character tab with ENTER to level up and equip weapons, but I don't know how to open any other tabs like the camp one. I can't click on them, so is there a key to press to open it or is it just bugged?

Hey, if you're having a hard time clicking on them, make sure that there aren't any clickable things (areas to travel to, for instance) under them - just move the camera around a bit with click and drag or the arrow keys and you should be able to click them.