TRV schedule to create 4 zones heating

This is first version of blueprint to control TRV in 4 rooms, so I can heat 4 rooms independently.
If you have just one physical heating zone, please be careful and leave one radiator always full open (i have it always open in bathroom and not using TRV on it), to protect you heater when heating with water.
I have TRVs set to manual mode and controlling schedule by HA automation as z2m cannot set schedule on my TRVs itself.

Any improvements/additions are welcome!