Another Clear Quenstion (Mr Hobby)

I bougth Mr HOBBY Top Coat Spray (Gunze) Gloss (501) to try it and I have some quenstions...,
1. I try it over zero basecoat, its any problem?
2. how many layers (mist and wets)
3. how many time between layers?
4. Can waxing and polishing after (if yes, how many time to dry before polish).
- for rubbing- waxing I thought for tamiya compound or modeling treatment wax
- after I plan to use Tamiya Modeling Wax
It 's any problem with these products over acrylic Top Coat Spray?

Thanks for your time and your replies...
Nice day to all...
With regards
George