Phase 2: New visualization and relationship setting for collectors and flows
Phase 2: New visualization and relationship setting for collectors and flows

If the user selects an "add to" or "subtract from" relationship, then the icon in the variable is changed to the same one we use for the transfer valve.

concord-consortium/building-models,concord-consortium/building-models,concord-consortium/building-models,concord-consortium/building-models,concord-consortium/building-models