SketchUp 2017 Training Video Question

Hello, my name is Steve and I’m new to SketchUp. In Part 2 of the video tutorials at 4:26 in the time line the trainer is using the offset tool at the bottom of the house. He creates a 6" offset then uses the push/pull tool to drag it to the top to create the roof overhang. For the life of me I cannot replicate that. I can only pull the offset down, not up. I would very much like to know how to do that.

I select the base of the house with the “select” tool, then use the “offset” tool to create the 6" offset. I then select the “push/pull” tool to drag the offset up but it only goes down:-(.

Any help is greatly appreciated.
Thank you

Can you share the SKP file as far as you’ve got? Then we can figure out what’s going on.