Alert for Below 25% or 50%

This is a tiny suggestion but hopefully it is not difficult to implement. Can you add an alert for a storage being below 25% or 50%? Right now, if you have a critical feed bin, you only know once its empty. This means the empty alert ends up being not very useful because it's likely too late. Players will chain 2 storages together so that you have buffer once the alert storage reaches 0. It would be nice to have an "almost empty but you still have time" alert. Either 50% or 25% would be fine. Thank you for your consideration.

I thought the game already had this functionality?