I'm trying to make roombounds and portals for a large dungeon/mine. In the view > show/hide window the checkbox for Markers won't stay checked which in effect does not allow me to check portals and rooms. In fact making a room bound isn't working. I am following the wiki guide. Help please.

press m (toggle markers)

should be available then.

edit: and make sure show/hide window's not active after you checked, pretty much any keystroke with the win active toggles current checkbox