How to change 'actor' to 'self' for contributors on a documentary

Hi greatreawakening, A step-by-step: 1) Click "Edit page", then on submission page use two drop-downs: 1.1) for Cast section select "Correct/Delete"; 1.2) for Self section select the number of credits to add (to move from the Cast); 2) Click "Continue"; 3) Copy-paste all the credits you want from the top "Cast" into the bottom "Self" section; 4) In the Cast section, select "Delete" in all drop-downs for the cast members moved to "Self" section; 5) Click "Check these updates"; 6) In the Explanation fields with red background, type what you need (for example, "Move this credit to Self"); 7) Click "Re-check these updates" and follow further instructions.