How to disable split screen preview when editing?

Whenever I move the edit between two clips or use a Trim Edit Mode the preview turns into a split screen showing me all the clips at once.
How do I disable it?
I know you can hold Shift to turn it off temporarily.
I know it can be done because I used to have it like that but I reinstalled my PC along with Resolve and can't find where to do it.
How do I disable it?
I know you can hold Shift to turn it off temporarily.
I know it can be done because I used to have it like that but I reinstalled my PC along with Resolve and can't find where to do it.