To complete more slots in the warehouse takes too long you need the builder to build the warehouse and make it bigger.
But you can do one thing easier, just make the first 10 spots in the warehouse gives you 99 for items and we can rplace depending on the item we want, also i am not asking to unlock the items. Lol
I want the items that i collected to be 99.
But you can give us all the materials because the materials are hard to get and take so much time,
FYI( materials are different than items) materials can only be used by the builder to upgrade the city Example (warehouse, farm, transport,itemshop ETC)
I hope its clear now hahaha
I am trying to make your life easier