I would like to search
https://www.coffeecup.com/help/articles … art-guide/
or https://www.coffeecup.com/help/articles … questions/
or https://www.coffeecup.com/store/themes/
but they don't let me find "theme."

I did run across a statement that RSD and HTML Editor themes are not interchangeable. My copy of RSD has eight themes without telling me what is in each. My HTML Editor appears to have no themes. How can I tell in STORE which one I am buying?

TUTORIAL
Is there a tutorial for using themes in Editor? For example, can I buy a menu them and a contact form theme and use them both in my one project?

FILTER
WordPress has an EXCELLENT theme chooser (even the FREE themes) where I can filter the list by FUNCTIONS. CoffeeCup should show me the same thing: a filter to show themes that contain both menus and forms, for example--and specify RSD or Editor. Without that, I am completely powerless; I can't even choose which theme to use in RSD.

SEARCH
Searching for keyword "theme" is little help for the above answers. When a search does return some items, more often they are for obsolete software like RLT (?) and RSD 2 or something else I don't seem to have. Could you classify the HELP / TUTORIAL pages and the SEARCH results by which product applies so I stay relevant?