When BPS is trying to place a building, it'll use the full building extent when checking for what it can place. Eg: I can over over the corner of an 20x20 building (playing pyanodons) and it'll put that building in.

But for placing modules, it'll only check the center of the building, so I have to hover near the center of that building.

In vanilla this doesn't matter of course, biggest building is the rocket silo. But Py uses a lot of huge buildings where it becomes more of a nuisance.

Obviously this is VERY minor issue.

Unfortunately, I think that's a limitation of how I'm currently doing item requests.
Right now I'm doing an entity search for the item request proxy entity, which is a secondary entity on top of a machine that handles item requests.
This entity is a fixed size, so unless I change how the entity search is working I'm not sure I can really do anything about it.
I may fiddle with it at some point in the future to see if there's a different way to do it without costing too much performance, I have a couple ideas.
Thanks for pointing this out though!

Thanks for the reply as well. :) And for the mod in general, has saved my wrists during my Py run.