Hi coffandchee ,
Thank you very much for your post.
Glad to see you around again.
We have full Export PRO premium add-on coming in March. You will be able to export everything and anything.
Regarding filtering in POs, it will come believe me as we have tons of stuff planned with POs. But for that we will need to wait a while. Plenty to do before we jump into PO improvements.
Sorry if I have disappointed with the reply.
Hope this helps.