When, from the "Assign job items and quantity extraction" dialogue box, there is more than one link of several Types of the same Family to the same job item, the Match column allows users to use the same combination in entity links of the same family.
It is possible to match the sets of measurement rules of several entity links with a job item. When one of them is modified, the modification is applied to all the links of that job item. If the project already had different rules (quantity combinations) in the same job item, the program does not unify them; it only does so if one is modified.
All entities (Types) that are linked to a job item will have the same set of measurement rules because they refer to the same job item.