If you have them split vertically C-wJ to move one to the bottom
If you have them split horizontally C-wL to move one to the right
To rotate in a ‘column’ or ‘row’ of split windows, C-wC-r
The following commands can be used to change the window layout. For example,
when there are two vertically split windows, CTRL-W K will change that in
horizontally split windows. CTRL-W H does it the other way around.