Suggestionnnnnn:

When you get to a point with a batch that you are ordering labels;
Total is lets say $50, but you're balance is not adequate.
When you are prompted to add funds it redirects you to that page and leaves the batch.

After that when you go back into the same batch any alterations to the shipping information has to be redone [ie. Changing letter weights, or allocating them non-machinable]
Would be nice if that data was either saved or if we could add funds without leaving the batch.

Also, a bulk edit option for shipping information;

I primarily ship everything non-machinable so being able to just prompt all letters being non-machinable would be nice atleast for me 🙂