Hello!
I want to create new Version of this PPR Exercise so that I can experimente some new stuff i just learned.
Im not really sure, how to use these "Manor/Minor Revisions" oder the "new Branch" commad. 
So want I want is: create a new Version of the whole structure and "keep" some of the dependencies. But if I delete some in the new Version, it doesn delete also the old Version. How can I do this?

I tried with the New Branch and Minor Revision, but as soon as I delete something in the new Version, it deletes directly the things from the old version! 
thand you for the response