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When creating or modifying a resource, select , and then enter the number of items that you have for the resource in the boxthe quantity box.
You will then be able to allocate the resource to multiple people and resources - enter the names of the people and resources that you want to allocate the resource to, as well as the quantity allocated, like so: add in the number of each item you're assigning to your staff and other resources (eg. 20 garbage bags in a vehicle).
Events
When a resource which consists of multiple items (eg. 1000 x bandaids) is assigned to an event, you have the opportunity to indicate how many are being assigned, along with then tracking how many have been returned once the event is completed (via the post-event report).