changing standard functions (cut, copy, ..) in an editable alv

hi,

following problem:

i have created an editable alv grid and implemented methods for the events before_user_command and after_user_commad in order to change some standard functions.

this works fine with all buttons except cut,copy, paste (the buttons, appearing when i switch with 'set_ready_for_input' method to an editable alv grid).

who can i change these function codes?

thanks in advance