I shoot many high volume events and use a separate catalog for each. It would be very helpful if the location of the most recent export directory could be cached per catalog. Currently, Lightroom only stores the most recent export location regardless of which catalog you are using.
For example, I might have events A, B, C and D. When someone places an order from Event A, I want to export to the finals folder for event A. However, when I open the catalog for Event B, it still defaults to exporting to Event A's folder. This is a ton of extra clicks for me.
Premiere exports already work like this; the export location is stored for that individual project & sequence.