When I travel through the galaxy I have to keep one hand on F2 and the other on the mouse so I can't use WASD to fly when I want to actually see what planets a star has, since right click doesn't do anything maybe that could open the system browser when right clicking a selected star? Would be neat.
In my plans the "Map mode" will show all space in orthogonal projection with spherical clipping, and mouse wheel will zoom in and out. Planetary system browser will be a part of this map mode. I plan to bind it for activation on a convenient key like [space].