1) the zap test is the same as hpls?
Not sure what you mean by hpls. Zap test:
https://www.soapmakingforum.com/threads/how-to-properly-safely-conduct-the-zap-tongue-test.63199/
2)We put the glycerin in the ΚΟΗ and not the KOH in the glycerin..
No! KOH is always added to the glycerin or water. Do not ever add water or glycerin to KOH (or NaOH) for safety reasons.
3)We heat glycerin and KOH because the KOH can't disolve in glycerin in a low temperature?
That is true. But I STRONGLY recommend you dissolve the KOH in an equal weight of water, and then add glycerin to the KOH-Water mixture. This is MUCH safer and just as effective.
4)If i use both NAOH and KOH the soap will be thicker?and wich rate i appropriate?
Not necessarily. Some people claim this is true, but it does not work for me.
5)In cp with NaoH we can use the soap after 4-6 weeks in cpls why we use the soap immediately?
Bar soap needs to cure. Liquid soap does not need to cure -- you can use it soon after it is made. Even so, I usually let diluted liquid soap rest for a few days just to make sure every last bit of saponification is done. This time will also allow any solids to float or settle out of the soap if a clear soap is important to you.
6)If we make the zap test and the soap is not ready what are the next steps we have to do?
If you get to that point, ask for help. The correct answer depends on why the soap is zappy.