Looks like there is demand for this - SHIPSTATION here is the "feedback or suggestion" you asked for.
Make it so now!
Still not done???? Make it now!
First comment here from a long time Shipstation customer. We opened a channel on Mercari a year ago, but its growing and worthy to have Shipstation as a partner. THREE YEARS since this was being requested and 4 pages of comments and still no reply or update from Admin. At least respond with we are working on it, or it can't be done. . Give your customers some info. Thanks!