Can't resize source and timeline

I'm sure I used to be able to drag the size of the timeline window and source window before when you have Dual viewer mode on?

Or is this some Mandella effect and I've never actually been able to do that.

If I can does anyone know how to make it work again? I've tried resetting the UI layout with no success

This is the area I'm talking about... I am sure I could do it before, if not I'll have to plop it into feature requests because I can do it in fusion and not here?

You can do it in the Fusion page - maybe that’s what you are recalling?

You can do it in the Fusion page - maybe that’s what you are recalling?

Okay maybe this is a weird Mandella effect for me then, I was certain I could always do it in the edit page as well

Totally possible that it's my memory that's been tampered with, lol.