Re-usable Formulas / Virtual Columns

Summary

Looking for ideas for reducing maintenance requirements for reports using the same formulas

Content

Greetings all. I maintain a library of well over 1k reports in CRMOD that I will be rebuilding in OSC over the next several months. I have several lengthy CASE statements in many of these reports that I have to routinely maintain as things frequently change. This means I am making the same change to the same formula dozens of times across dozens of reports. I am looking for suggestions for reducing the effort it takes to make these changes.  It would be really awesome if I could write the formula in one place and reference it from reports (much