raai, i don't have a manual af that, but you don't really need it, is simple code of clarion, just write it and the clarion engine will take care of everything
You can declare a trigger on yout dct:
1.- Select the file that you want to perform some code before or after an insert,change or delete action
2.- right click on the file and select the "triggers" option, or you can double click on the file and it will take you to the fields/keys/triggers windows, select the trigger's tab
3.- that's all now you can insert change or delete a trigger
4.- just put your code