Group projects w/ DES / central plants

This is with regard to an open air shopping plaza, which is registered as a group project with 7 structures. We received guidance to follow the “Treatment of District or Campus Thermal Energy in LEED” documentation re: how to apply our district cooling energy efficiencies across one model. To clarify – that implies that our energy model should be a single model, for the entire area within our scope of work - correct? We were also informed to be sure to include all non-contiguous buildings that fall within our LEED project boundary (“ancillary” spaces such as storage or mechanical) into the designation of those Building which they serve. (eg: if the One building has a storage room located on the parking level, it should be allocated to the One Building, despite no physical connection). When we document this, we foresee some confusion, as the Schedules on the Minimum Energy Performance Calculator are broken down by Area Served. For example, the Building 1 includes One Building (served by package units) as well as adjacent retail (served by central plant). Do we simply report this as such? For Building Two: this is a cold dark shell being served by further tenant HVAC, however it also has contiguous ancillary mechanical spaces served by the central plant. Does this get reported as two line items for one building (Building Two?) And, with regard to the remaining spaces served by the central plant: Do we itemize each Building in the Schedule, or can the remaining buildings be grouped into one line items, with efficiencies averaged amongst the overall square footage? (Or is there another way to allocate the energy demands vs efficiencies besides square foot?) Is there any scenario where we would need to create separate energy models for each building? Thank you in advance!