Hi Jordan,
Unfortunately there isn't an easy way to natively mass swap a field amongst all of your reports if they are set to custom. Any report that is set to the reporting defaults can be edited by going into the reporting defaults and editing the fields you want displayed there. Alternatively, any reports set to custom columns requires going into that specific report and reassigning the custom columns natively.
I would encourage you though to include that feedback in our User Voice as a business need for your company. UserVoice is our Feedback Platform- which can most easily be accessed from the My Apps page in Quick Base by clicking on the orange Feedback tab that appears on the left hand side of the page or at
http://quickbase.uservoice.com . This forum is used by our development team to explore customer suggestions for enhancements / changes to the platform. I'm sorry there wasn't an easier native fix I could recommend.
