What are dynamic arcs and dynamic groups in Zero editor planning?
I mean this:

I noticed that if there is a tunnel with 2 doors for example that AI doesnt walk through it unless some kind of dynamic group is used. I'd appreciate if anyone can explain what each of the groups do. Thank you.

Suppose you have ten connections named Connection1 up to Connection10. Connection2 shares a common hub with Connection1, Connection3 shares a common hub with Connection2, and so on linearly just to simplify things. Let's say you want to make Connection1, Connection2, Connection3, Connection5, Connection6, and Connection9 dynamic i.e. be able to block/unblock them via lua. So you end up having something like this:

1 2 3 4 5 6 7 8 9 10

Where red means dynamic. Since 1, 2, and 3 are connected and dynamic, you can assign them to the same dynamic group. Since 5 and 6 are connected and dynamic, you can assign them to the same dynamic group, but not the same one used for 1, 2, and 3. 9 is by itself, which is perfectly fine; it can go in a group of its own.

This is assuming you want to block/unblock, for example, 5 and 6 simultaneously. If that is not the case, then you can assign 5 and 6 each to a group of their own.