"Another trick for hide/show is "Show subset", that's available by a Ctrl+click on the Edit > Hide button. That will temporarily show all the hidden objects and let you select just some of them to be shown rather than showing them all."

Oh god... After all those years using MoI I still learn awesome stuff!! This is so useful!! Thanks

Also what I usually do in my workflow when Isolate is not enough is that I pick the move tool and move the part by a fixed value like 100 units in 1 axis

Just pick the move tool then type 100 and done, then you can work on it and after that you just move it back by the exact same value :)