On the home screen, tap Inventory in the bottom right corner.
Once you've done that, tap the three dots in the top right corner.
There you can select inventory sharing at the bottom.
Here you can choose to either share your inventory or join someone else's inventory.
If you choose to share your inventory, you will get a sharing code that you can copy and send to whoever you want to have access to your inventory.
If you instead choose to join someone else's inventory, you enter the code that was sent to you, and then you can see their inventory under the "Shared" tab in the top left corner.
If you want to delete or move something from the inventory, simply tap on that cut and select what you want to do.
