Can't translate GameObjects in Scene View with middle mouse button (like in Maya).

Documentation says:
If you have a three button mouse, you can click the middle button and drag to adjust the axis that was most recently moved (the arrow for this axis will change to yellow).

But when I tried to click and drag with my wheel button it’s just immediately changed to Hand Tool :frowning:

I can’t remember that this was ever possible. I guess it might has been a feature in a very old Unity version. I use Unity since version 2.6 and as far as i remember the middle mouse button always has been the “quick hand tool” for panning the view. So i guess this is a documentation error. You might want to file a bug report. Either as a documentation bug or as an editor bug.