Any part of your model that you place on a Layout is a View (Help Centre: What is a View). Multiple Views can be made for each part you wish to show. Each View has it's own settings which include a Floor Plan Cut Height (FPCH).
A Hotspot (Help Centre: Hotspots), in the drafting sense, is an invisible marker and can be found on your toolbar.
So, basically, make a View of each part of your plan with its relevant FPCH, then align each View on your Layout using Hotspots that you have placed around your plan.
ps. As a side note, you should add which version of ArchiCAD you are using as well as your computer specifications in your signature as some things are version / hardware specific.