generalization of follow mode, to arbitrary pices of the buffer

[Uwe Brauer]

Hello


Does anybody know about a generalization of follow mode which does the
following:
After a vertical split of the buffer, I scroll, say the right window
down 100 lines.

Then I activate the generalized follow mode and now any scroll movement
on one of the windows is done on the other window as well.

Google search did not return anything useful.

Thanks

Uwe Brauer