Forge player trait zone questions

I was wondering if the player trait zones are stackable and how large can they be made.

If you put the max number of player traits zones on top of each other all with the lowest gravity and highest speed settings, will you ‘enter slipspace’ or will the player trait zones overwrite each other?

If the player trait zones can be made large enough plus they overwrite each other, I would make a Colosseum forge map. The player spawn zones would be in a higher area along the outer Colosseum and would be modified by a low gravity / high jump trait zone. In the center area (the arena), there would be spawns for power weapons and the player traits would be set to normal gravity and speed. Perhaps there could even be a center pedestal in the arena with a high gravity / low speed zone that would contain a custom power-up and incineration cannon or rocket launcher.

I think it’ll overwrite eachother