Tablets, tower overlapping and events per map

Good Afternoon

Upon reviewing some of the most recent released videos about the endgame mechanics a couple questions have popped up in my head regarding tablets:

1: it mentions that 8 of the maps in the region will be affected however, it is not very perceptible of how big the region is, we do see a ripple effect coming out of the tower after activating such tablet but nothing before. Will a preview of how large these areas are be added so that we may understand which regions it will affect?

2: in the footage there were areas that had 2 towers close to each other and the question is do they have overlapping areas?

3: if I apply 2 tablets from different contents (one breach and on ritual) on the same tower, will it add both mechanics to a single map in case the same map is selected for both? Or will one override the other?

These questions are kinda intertwined since the answer to one can affect the others. For instance:
If any tower can apply multiple different events on the same map, then we can simply do it on a single tower however, if any tower can only apply one tablet but any map can be affected by multiple, then knowing beforehand what is the range of the towers before activating the tablets is crucial.

Of course that if any map can only be affected by one event then knowing everything else is rendered useless.

Thank you in advances
Best Regards