While using a few of the mobile apps, I have noticed that any time a list comes up the app will not allow a scanner to choose the option, or search the list to narrow down options. Inventory Relocation and Inventory Adjustment both at this way, usually at the middle points. I noticed, however, that the Receiving mobile app allows for much broader scanning options whereas some are limited. So being able to scan an item from a list would help a lot.
It would be especially helpful for lists that are very long. Some of the SKUs enter have many locations, or a location have many SKUs mixed in, but I cannot scan the item rather than scroll through the list hoping I select the correct item.