Field help (TXSEFFACE) 

Do you wish to erase the grid on the destination folder before it is copied, if any? For instance: I want to copy grid TAB1 from folder A to folder B. If TAB1 exists in folder B and this option is not checked, the grid will not be copied. If TAB1 exists in folder B and this option is checked, TAB1 of folder B will be erased, then recopied to folder A.