Improved Storehouse has a drwback
The ish is a great tool to upgrade storage but it has a major problem... collectibles are hidden in its icon. Most buildings do not allow collies to be placed inside their structure or even on the edges when they are right next to another structure. That makes finding collies easier because you don't have to look at all your island just the edges of building groups. BUT, lo and behold, the ish does not follow this logic. Collies are in it, on it, behind it and around it. And you sometimes can not even see them. Hassle.