I qualified for the Oklahoma Credit for Employees in the Aerospace Sector since 1/2/2018, but have never claimed it. What do I need to do to claim the full $25,000 since I can't amend tax returns that far back?

I have searched and searched for help with this question and have no clue how I should handle this or how I need to fill out the OK Form 564.  I was completely clueless, so I did not attempt to in my 2024 tax return.  Please give details instructions on how to handle this and how to fill out the 564 form for this situation.  Thanks in advance!