Sorry for being so simple but i'm finding it really difficult to work out how to split screens and then rejoin them.
so i grab the corner of a screen and drag it creates a new screen then i grab the corner again and sometimes it creates a new one and sometimes it merges them.
I'm a bit confused about the controls.
I looked on the 2.8 manual and I think its a bit out of date as it looks the same as 2.79.
Any help is greatly appreciated