In multifamily buildings with central DHW loops, it is common for makeup cold water (replacing hot water going down the drain) to be mixed into the loop at the water heater. This is shown by the yellow CWS in the diagram in Figure 1.

However, in EnergyPlus it appears that the WaterUse:Connections object automatically mixes in cold makeup water to the outlet node of the branch with the WaterUse:Connections object on it (see Figure 2; source)

How can I mix in the makeup cold water at the water heater (after the return pipes) instead?

Figure 1

Figure 2