Extreme Archelogy

Hi
First season in, and I am concnetrating on Expedition to learn the mechanics. I have picked up Extreme Archeology (one massive explosive) , but can’t figure out how to properly tune the area of the explosion, this thing is so huge ! You cannot zoom out to see the whole explosion area. How do you guys handle this? Roughly place it the middle of the zone of interest?
Thanks

Yeah the point of it is basically so you can hit everything without having to through the process setting up the explosion chain. So if there are any mods you cant run, just make sure they are not in the giant circle. If there is a certain mod you can't run, you might have to place the circle somewhere where it is not hitting everything, so that you don't brick the encounter. If there are multiple mods you cant run, it might be better not to use this keystone, and set it up manually, as you can still get everything you want with more exact placements. Its mainly for people to save time on the setup and getting everything applying in one explosion, rather than incrementally in an explosion chain.