Is there any way to launch the MyHarmony app without actually having physical possession of a remote of the desired type (ex: 665, 950) connected to the host PC?

Why: About 10 years ago, I owned one of the first Harmony remotes with LCD-labeled buttons... and ended up being thoroughly disappointed by it (mainly, because it was so limited as to what you were allowed to actually DO).

Since then, they've gone from the original PC-based config software to cloud-based config software and back to PC-based software. As far as I can tell, most of the limits that originally caused me so much grief have ceased to exist... but trying to find actual, concrete details on Logitech's site is nearly impossible.

So, I figured I could install their editing software, then try using it to edit a hypothetical "offline" remote to confirm that it would actually allow me to do what I want to do... but I can't get past the "please connect your remote now" dialog.

IS THERE some way to edit a hypothetical 665 or 950 that's not physically connected until you need to actually program it?