This optional column is used to group resources together such that for all resources in the group, at most one of the resources will be allowed to build at a partial level. In other words, at most one resource in the group will have its total build (sum of yearly acquisition values) greater than the input lower bound and less than the input upper bound.
To form a group, enter the same value/text in this column for all resources in the group.
NOTE: This column is ignored for any resource with Integer Acquire = True.
Partial Build Group Column