War of Conquest

Trying to do as many quests as I can here but stuck on the donating MP...how do you do it?

I have an ally, I have hydro gardens built, they're full,ally has exhausted its MP, I was hoping that it would auto send MP there? But it hasnt

Doesnt seem to be anywhere where you can send it. Does Ally need to have Hydro Gardens or trhe likes too??

Same here, I'm stuck because of this quest... And I feel stupid, as I was handling the rest quite normally before.