I am working with the trial and just watched the video on working with keywords. It mentioned a preloaded set of hierarchical keywords, but mine seems to be empty.
Hm, strange.
I've just installed a fresh copy of IMatch 2020.9.4 trial and the thesaurus contains the standard keyword set I ship with IMatch.
This default set is automatically loaded when there was no previous IMatch installation (on the first start).
Did anything go wrong during installation?
Did you install more than one trial version?
...?
You can load the default thesaurus (or your own controlled vocabulary) via the Import command in the Thesaurus manager.
The file to import is C:\ProgramData\photools.com\imatch6\Presets\system-en.imths
I don't think so. I ran a trial a year or so ago, but that was on a different laptop. Maybe when I purchase, I'll blow everything away and start with a fresh install.
IMatch retains settings "over" an un-install / re-install. Unless you manually delete "C:\ProgramData\photools.com\IMatch6" and "C:\Users\Mario\AppData\Roaming\photools.com\IMatch6".
You can just import the standard thesaurus as explained and the problem is solved.