[tde-users] Mass edit Menu entries?

Hi All, Anyone know how to mass edit all entries in a sub-menu? I’d like to change all of the entries in the Internet sub-menu by adding a ‘nice’ to the beginning of each launch command. Example: firefox %u -to- nice -n 5 firefox %u I’ll want to do most of the other sub-menus, so it’s not just specific to the Internet sub-menu. Also, would these be overwritten by anything (e.g. is there a sticky bit I’d need to set somewhere else?)? Thanks, Michael