Returns the number of entities in a batched or loaded entity (a loaded entity is an entity with other entities attached to it). If the entity is a loaded entity, it will return only the number of loaded entities, not the base entity. For example, if you attach four Castings to a Pallet, the GroupQty() will return the number of Castings (i.e. 4), which does not include the entity Pallet.
In the case of multiple levels of groups and loads, GroupQty() returns the number of entities in the uppermost level only.
Example
A group of documents called Folder arrives at the Secretary in-box and is processed for some amount of time according to the number of documents in the folder. Each document takes 3.0 minutes to process.
TIME (GROUPQTY() *3.0 min)