Natural ventilation vs Mechanical ventilation using ladybug 1.2

Yes you are right, it can be done with the HB Apply Loads Values component.
Like shown in the attached picture

But at the moment I wonder why the amounts are added up in the Thermal Loads Chart?

I mean if you are living in a rusty shag the amount infiltration is most likely the thing that matters.
In a fairly good environment it might be natural ventilation.
With a modern HVAC it’s what’s mechanically delivered.

I’m asking because in the currently used European EN 12831 only the highest amount is taken of these loads? Does this apply for the honeybee/EP+ context as well?

Single family residential? Where is this located in honeybee?

Many questions I know. Thank you for your help.
Martin