At this time, you can't.

In CHEQROOM, all Items are unique and physical pieces of equipment. 

Although it makes a lot of sense to have "anonymous" Items with a quantity e.g. for consumable inventory or generic equipment, we don't have it yet. This is something we have on the product roadmap.

Workaround

As a workaround you can use the Item duplicate function to quickly create a lot of identical items. Each of the items will be uniquely identifiable and trackable.

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