I like your idea for training sessions. From economical and probability perspective need more people and/or more problem solving examples. Currently I see main difficulty in finding right people and topics. Who it will be and about what? Maybe 1 on 1 training, some consulting, engineering, remote teaching?
The idea is, of course, that interested people can define by themselves what they want to see. Anyway, a starting point could be an introduction that shows how QucsStudio is intended to be used. This way, typical (maybe unknown) features are explained automatically. After this, the users may ask questions about problems they encounter etc.