DISCUSSIONS on “Rules for online games in HoMM3 and formulas for calculating player rating.”

Two questions not about the new rules, but in general.

1.

5.4. The Town Portal spell may be used by any hero no more than 1 time per day.

By only one hero and only once, or can it be used by 2-3 heroes, for example, each once?

2. I was playing funky on Jebus, went out onto the sand, one of the "empty" respawns had no guard, I made a few moves with my scout hero inside, there were no neutrals anywhere, I turned around and left. The opponent definitely wasn't there, his ГО wasn't broken, and I had Air Magic Expertise, everything was visible. Could I have gone there?