Basically, allow a "default" shipment level to be applied to each planet (or sector)
When you select a sector to relay, it will automatically be set to that level, but you can do manually adjust.
It's a small quality of life feature, because the relay is set to the level you last used on the device you are using. Also, you also can't change the setting when there are no planets left with shipments, meaning that if the last sector you scan isn't representative for some reason, when you come back it won't be on the setting you expect.
Putting this in would allow players to set, for example, their starter planets to a low bonus and their high income planets to a high bonus, and the scanner will automatically be on the intended setting.
It wouldn't add any game play or mechanics advantages