Hello,
first of all I must say, I really enjoy your mod. My entire factory is based on it.
I have a suggestion tho. Please add a way to insert items into buffer depots with inserters (not exclusively drones). That would help facilitate creating larger buffers for resources e.g. by inserting the items from the depot into steel chests or warehouses and back into the buffer depots, since the depot's capacity is limited by the amount of drones in the depot. It would also help the circuit network, because then you could emit signals based on the amount of items in the chests next to the buffer depot, as you can't read the contents of the buffer depot directly.
