Trait zones HELP please

So I’m having an issue with trait zones I’m well aware on how they work and how to use and apply them, however in wondering is it possible to have a trait zone spawn in the game after its already begun ? I’ve placed an area on my map where movement is 0% on trait zone alpha. I then made a second trait zone - bravo and made its spawn time 60 seconds place at start false and made its movement 100% - so movement in the 0% area would be restored. But when I go into custom games the trait zone appears at start anyway and ignores my settings! Can anyone tell me how to make it work correctly ? Also ice created an interesting poll for fun!