You may have noticed a change in the way some panels are stacked in newer versions of Premiere Pro and After Effects. A great example of this is the Lumetri Color Panel which you can find to the right of your UI if you choose the ‘Color’ workspace.
The difference is that each panel is stacked on top of the other panels, rather than being a series of tabs in a frame, with a little double arrow indicating if there are additional tabs not showing.
The good news is that you can change the behavior of these panels and frames to work in either mode. So, for example, if you wanted to access your Lumetri Scopes, Effect Controls, Audio Clip Mixer, etc., as stacked panels rather than tabbed panels in Premiere Pro, you can – and it’s easy to do.
Every panel has a panel menu – which you access by clicking on the three little lines next to the panel name. If you click that menu of any panel in the frame/group you want to change you will get this option.
And then the panel group will change to look something like this.
To undo, go back to the panel menu and under Panel Group Settings uncheck ‘Stacked Panel Group’. And, while you’re at it, have a play with the other 2 options in that menu in Premiere Pro, and see if they would help you – ‘Small Tabs’ and ‘Solo Panels in Stack’.