Tap the filter button and select the filter for the store you want the item to be added to.
Tap the Add Item bar and begin typing the name of the item you wish to add.
Any item you add to the list while the filter is active will be assigned to the store(s) associated with the filter. This allows you to quickly add multiple items to a store as you build your list.
Note: AnyList Complete is required in order to filter lists and assign items to stores.