First off, you guys rock! I love Ship Station & hope to be part of making it even better.
I often group by Item Name so that I can batch print labels, add tags, put orders on hold or a number of other functions. Once I've selected the group of orders I want to work with, it would be helpful to know how many I've selected. Right now, the only way to do this is to nav to the "Apply Bulk Action" function. There, the number of items selected is displayed. I then cancel that function and return to my original view.
If the number of order selected were to be shown somewhere like the bottom of the screen (see screen shot below), this step would be unnecessary.
Perhaps the current text showing the number of orders on the page could instead show the number selected out of the total number on the page, such as "23 of 67 selected"