I see now that you do have a help for this program, but you are correct in that it is not easy to find.Although it takes a bit of exploration, there is a ‘Help’ button in Pref->About->Help, and you will find a ‘Supported Apps’ button in Pref->About->Apps.
The computer program norm has evolved to be a common expected setup of having a help button in a prominent location, usually on the main program window.
You usually see the following under help:
Help Contents
Web site info
Update
About
Just something to think about. This program has become a must have for any version of Puppy Linux I use.
Thanks!