You will probably need a laptop / PC / browser to manage this, and not use that useless app. Also IE no longer compatible , so use Chrome or Firefox, both eBay frendly.
If you are on the classic site, go top right and you will see the link.... My ebay page is set to.... there , click on Change.
If you are on the newer seller hub page, then again top right click on customise, there you can switch around the columns in the order you prefer.
