Why am I only able to combine certain tabs within Rocket?

i.e. - Combining Content Browser and Blueprint Editor work fine, but other things like Details, Class Viewer, and Scene Outlier cannot
have anything added to them.

I see that certain tabs actually have a folder-like tab appearance, while some of these other screens (Details, CV, and SO) do not.

Is there a rhyme or reason behind this? Just curious.

Hi Dave,

Have read through the Unreal Editor User Guide, especially the section below?

https://rocket.unrealengine.com/docs/ue4/INT/Editor/UserGuide/index.html#Interface

That’s actually exactly what I was looking for!

There’s so much to sift through, that I tend to get lost or side tracked from time to time. Thank you!