organizing a sequence of presentations

I plan to give lectures on a certain subject with Impress. But to stay flexible I have built up several modules where each one contains a distinct and autonome part of my central subject.
I am searching for a way to define per lecture about what modules to use and in what sequence, to build up a presentation which can be adapted to the theme and audience of the moment, without having to load a general complete (and extremely large) presentation and preprogramming what slides NOT to show. Is there an extention available to achieve that, or can it be done in an alternative way?

Hi @SoftSpot1, Are you asking if there’s some good way to have a multi-part document in which you can mix-and-match pieces, each stored in separate files?