(or windows layout as Emacs likes to call it)
Save your current windows/buffers layout
Split and mix the windows the way you want them to, then call:
C-x r w <number>
To save this layout
Jumpt to one of your windows/buffers layout
C-x r j <number>
~
✉
torstein.k.johansen @ gmail
~
🐘
@skybert@emacs.ch
~
🐦
@torsteinkrause