I'm unable to shrink the width of the Test Explorer and Element Explorer.
In the attached file I'm unable to move the bar (highlighted with the red line) at all to the left.
I'd like to be able to shrink the width to the left, as both panes take up more room than necessary.
(SIDE NOTE: For some reason, the required "Version" drop-down only gave me versions way back to 2014. I'm on 2019.1.212.0)