On Edge Outside Active

Beginner doing a school project. Trying to push out windows but I keep getting On Edge Outside Active. Please help!

That tip is the inference engine telling you that you are snapping to an edge outside of the current context (you have a component or group open for editing in the screenshot you posted). My first guess would be that you have the window rectangle and the wall in different contexts, one or both of them is a separate component or group and thus they are not interacting with each other. Make sure your wall group/component is open for editing and draw and new rectangle on the wall, then push pull that.

Just a guess, post your model here to get a better answer.