Reverse engineer an android app to bypass needing to login?

So I’m useing an old makerbot printer that doesn’t work with their current software or cloud service and it doesn’t have a lcd ui so would like to setup an android tablet to live with it as a ui but their a old app doesn’t work with the makerbot account login anymore so I can’t login to it.

Their pc software has a config you can set to bypass needing to login and I’m wondering if that exists in the app? Or if there is a way to modify the apk so it doesn’t need to be logged in? I tried to look at it using Dexeplorer but couldn’t really find anything.