Form limit

Hello there,

  1. I need to make perfect way in this: You can create only ONE event in form(with map ping) which also means your identity and I have a problem with code and where to put it. Can it be also made without required sign in? USEREMAIL() doesnt work well

a) and after you do this, the possibility in the menu will be hidden, you can only edit or delete, but if you delete, the ,join in´´ will appear

  1. Its possible if somebody made an event with picture, than I can approve it, if there could be a wrong content?

  2. My vision is about milion users, is this possible to make it also vissible on map with too many pings ?

  3. After I create this app, can It be individually on google play ?