Authorizitation: Howto add Object K_PCA to transaction FAGLSKF3

Dear Experts,

we are in need to add to a standard transaction (FAGLSKF) another authorization object (K_PCA). It seems Ican do this with transaction SU24. But do I need additional coding when I do this? Or what is the right way to add another authorization object to a transaction?

Thank you very much,

best regards Timo