Help understanding walkable areas

[jsalmons]

Hello,
I have just started trying to make a game but I am having problems making the walkable area. I have tried following the tutorial but when I try to create the area it tells me I have the eraser selected and to change selection in the properties section but I can't find where this is.
Any help would be greatly appreciated.

[Failure]

Maybe you're trying to draw walkable area with ID 0? Try to change areas ID (use the list above properties window)

[jsalmons]

ah perfect yea that's sorted it. What is ID 0?

[Crimson Wizard]

ID 0 is eraser for room's region (walkable areas, walk-behinds, custom regions). You use it to remove areas where they are not wanted.