Change from iCloud backup to backup on Mac

[whitetriple]

My sister got new iPad and set up backup should be done on iCloud. Now she wants to switch to her Mac.
However, if she connects the iPad to the Mac and opens iTunes, it asks whether she wants to create a new one or to restore from backup (which would be her iPhone).

Is there a support document that explains how to switch backup from iCloud to iTunes?

Has anyone done this and can tell me how to do?

Thanks'

Juergen

 

[Cascades42]

If she creates a new one it shouldn't wipe the device - it didn't when I restored my air to nothing and set up my iPad Pro before plugging either in, I just selected the new option, and then went ahead.