Could it be possible to expand the space of a tab and to contract it of another tab while you are reading them?

#1

I would like to be able to expand one tab (i.e Preview) while reading it and have other one (the one your are editing) in the screen as well?

Sometimes, I have to close the preview one to edit the file properly right now.

Thanks in advance,
Paola

#2

I think this request is similar to this other forum topic:

#3