It's like the Onclock, will be more dynamic will defenir one Onclock on a label, precise and without defenir one label onclock or several which usually becomes a problem.
That is dynamism.
bindclock "hh:mm",NPC:LABEL;
unbindclock "hh:mm",NPC::LABEL;
checkbindclock "hh:mm",NPC::LABEL;
no...