Changing scenes in PlusSpec

Hello,
I’m using Sketchup 2016 with the plug in PlusSpec, and I’m trying to generate a set of 2D drawings but I cant work out how to change scenes. The scenes that I want to edit is the site plan, I want to show the area of the house in grey and the roof outline in dashes. the other scene I want to change is the floor plan so that my tiles show in tiled area. I have changed the layers so that the tiles should show but the details and surface of the tiles aren’t showing. Can anyone help me?

Thanks

Change scenes by right clicking on the model box and selecting Scenes from the context menu. You will get a list of all availabe scenes in the model: