I have recently discovered the map label tool (yeah, after 8 years playing I discovered it NOW), and I'm totally amazed and in love with it:
I am including a label for each survey ship (to keep a track what was its last position, so when it comes back to overhaul it can continue its mission later). For example, Stellar has not any fleet on it, because it came back to overhaul.
I added a new label "Raza Alienígena" (it is spanish, the translation is Alien Race) to locate the region controlled by a NPR (for now just stabilished points)
And, also, I have added a new label for the sectors I am going to create (for now only Sol Sector).
Do you use this tool? How?
Finally, you will notice that all systems have a number before the name of the system. This is because I want to know exactly the position of each system, being Sol the 00