I voted up and liked your suggestion, but...
I think you talk about freight ship transport and not the virtual transports between base and spacestation. There are all statistics needed but missing yet. Production including imports are not predictable. I talked about elsewhere in this forum.
Freight ships:
The visualization and the process of cargo transfer by ship is a bit sketchy yet.
You can only see the inbound stacks in the ship, while it's on the way to its destination. The pads have no own logistics container buildin. Why pads do not prestock the item while the ship is on its loop? So all the items have to be transfered and loaded while the ship is docked. That's not well designed and not intuitive in my eyes.
Both sides of a transfer line should buffer some stacks of items for a much faster load and unload. If the inbound storage is full, no flight is needed until the count of stored items falls below a set value.
You cannot use a demand in order to trigger a transport yet. The predefined load at the sending site is more or less useless, if the pad has no storage itself, because the ultra fast blue (tier 4) coveyor is still mjissing. The ship has to wait until the minimum load has been transfered, flighs to the target and wait until everything has been unloaded, before it runs back. Unfortunately this is no tintuitive way to use this feature.
Over all the statistics and informations for an easy predictability of production are missing yet. Trends are missing. Clear visibility of any problems is missing...
The method to deal with outputs (FIFO?) provides no ability to filter in a useful way. If the pad has no storage, filtering has no advantage. If the ship could not be emptied fast enough, it blocks the pad for further deliveries.
If there would be a buildin storage, you could try to filter outputs without any blockers. At least you should be able to reserve an amount of inbound items. If you can do this, you could multi-use bigger logistics container too. But I don't know, whether this would work easily right now.
So far there's a lot to do. Right now you only can use one freighter per freight in a reasonable way and in one direction only.
Load- and unload storages are a must have at first.