I am using liberkey ultimate. there are lots of software. is it possible to add some frequently use software to a favorite list?

Hello

Not now. But a new version of the LiberKey is scheduled for May 31.
And who knows ... ?

In the Options window, you can activate a MRU (Most Recently Used) List.
Alternatively, you could create a new folder in the "Launch LiberKey" menu and drag your favorite programs into it.