Reclaim storage right now does not stack multiple colours of gleam together, it does them in separate stacks. Same for rocks and any other blocks. It also seems to sort them by colour.
It would be lovely if there was a way some day to sort our regular storage blocks/chests in the same way. I add a stack of gleam to it but there’s already another stack of a different colour? Then do not smart stack, etc.
I also would love a system already where we can designate empty spots for certain item types, like fossils, so I can have 3 different spots where they should go, not all automatically in the same stack.
A better way would be that if you turn a switch on, on the storage, that the game does it automatically, so you do not need to designate certain spots for certain items, but if you have 100 of each of the 3 fossil sizes and add 1000 of the medium fossils then you would have 4 stacks in there, but since auto sorting is on the first stack is the 100 small fossils, then 1 stack of 900 medium fossils, then 200 medium, then 4th spot has 100 large fossils.
Problem is, there are so many items and with different colours that we spend oodles of time manually sorting them, we would love a system to make that easier.