@wardred If you have a keyboard with number pad you can press the period/full stop key ( . ) to focus the viewport on what ever you have selected; and pressing the forward slash ( / ) on the number pad will isolate whatever is selected so that you can focus on that. And pressing ( / ) again will take out of the isolation mode.
Other than that I don’t really know if there are specific buttons for these functions, but hopefully at least knowing about ( . )
and ( / ) might help.
