How to edit the existing tree?

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• Previous message: Valery Fine: "OpenGL package for Windows 95"

If I have the tree T with 1 branch "branch1" and several
filled events "nevent" in file f.root how to:

1. Update the vertical structure if the tree
- add new events to the file
- change the existing event in the file
- insert a new event into the file (not in the last position)
- delete the existing event in the file

2. Update the horizontal structure
- add the new branch to the tree in the file
- fill this new branch event by event

Is it possible to have branches of the same tree in the separate
files?

Thanks
Valeri Tyukov.

• Previous message: Valery Fine: "OpenGL package for Windows 95"