Is Power CMS compatible with DW CC 2018

Tried to load Power CMS in DW CC 2018 on Mac 10.12.6 to no avail.

What did you try to use to load it. Where did it fail? Did you get any error messages? What were they? I'll need more information to help you figure out what went wrong.

Tried to load withDMX Zone Extension Manager, showed it as loaded but it does not appear in DW menus. It's showing in the manager but no errors, nothing in DW in menus.

PowerCMS builder is now part of Design Extender. That should work if installed using the DMXZone extension manager.

I only have Power CMS Builder not Design Extender, is it a different app in Design Extender??

Yes, it has been updated for Dreamweaver CC support.

Why hasn't Power CMS Builder been updated as well? Design Extender is just a collection of apps such as Power CMS Builder.

We stopped selling PowerCMS Builder around 7 years ago. We just don't continue to update products that are that far past their end date. A lot of updates have been made to Dreamweaver, so a lot of updates would be necessary to get the older versions to work.