Copy multiple glyphs’ exact paths from one master to another

Problem:
I had to change most of the paths of the box elements in a font. I did so in one master. Since they look exactly the same no matter what weight I need to copy/replace the exact paths in the other master.

Question:
Is there a fast way to replace all of them rather than doing so one by one?

You should be able to do that with “Paste Special”.

Unfortunately this does not work.

In Font View, select the master you like to copy from. And select some glyphs.
then switch to the other master and Paste Special. Use this settings:

Oh, this works. Cheers!!!