I think you can select multiple nets in a row after only a single LABEL command (at least it works if you do this from the menu). You wild still have to click 36 times, but that's much easier.
Yes I tried that and it works. LABEL command, followed by a click fest of 36 clicks makes the default N$x labels visible. Then change the names.
I have also found the following method, which is only very slightly faster:
- Create one net and make it's label visible
- copy this net, together with its label
- assign the PASTE command to Control-V
- For all extra nets, position mouse to new location and press Ctrl-V
This results in all nets having the same default name N$1, but that's no problem, because I will have to name all of them anyway.