Yes. Just pick the CA Pro template instead of the CA3 template. Or for a full selection of the old templates, use the "Pick a pre-defined template" option in the first step of the new map wizard, then in the template select box, hit Select Path and navigate into the CAPro folder and into the desired subfolder, pick any of the templates and hit ok to preview them all in the template picker dialog.

My keep right here is essentially a multi-floor perspectives map (needs some zooming in):

Do note that it can be pretty confusing handling the floors. While it is perfectly doable, Perspectives itself doesn't really know what a floor even is, it just works with surfaces. It is up to you to position those floor surfaces to make the illusion of floors look right.

I have a macro that draws one here, if you can use that as a base:

A new great set of maps are integrated into the atlas. Thanks to @Ricko and @Royal Scribe .

Note Kevin: You didn't supply a .fcw for the cave map, so I can't do that one until you do.

Why would I need actual space for my keyboard and to move my mouse? And that cat tail is expertly trained to both click mouse buttons and hit keyboard keys whenever necessary (as determined by Jack)