Note: After a simulation has been running for a while, changing from "All" to an individual plane, or from an individual plane back to "All" will result in a dialog box asking you how you want to redraw the object trails. Gravitorium remembers up to the last 4096 positions where each body was located, so a full redraw can take some time, particularly if there are many bodies in your system. The advantage is that you don't lose your impression of what is going on when you change the window size.
You can move between the individual planes without this penalty, however.