>poison cylinder
M3gan removed it from the chest but it should still function given the right mechanism, this will require a skill check, and will have a high DC. You certainly can but it has a range of only 2.5ft, so directionally 90 degrees from the center of a square to something really close to it.
M3gan is a master level in invention and crafting mechanisms, her design is almost guaranteed to work, but you'll have to work with her and play nice, like not threatening her dear friends or herself. Ashley will be next to as useless as you in this regard, so plan accordingly.
Fyi level 5, 6, and 7 are free I think. The next level is electrum plate at level 8, I need to verify, and it would cost 1000 ep each. Keep that in mind. Adventurers aren't necessarily rich.