Stop automatic conversion of planned orders into process orders

Hi all

I have read many topics here regarding automatic conversion of planned orders into process orders & I can see there is one option which is using program PPBICOR8 & customize it to stop automatic conversion of planned orders into process .

my question, is there any simple way instead of going to customize this program PPBICOR8 ?

because I need to control all MTO order & control them manually by selecting ( indicator conversion in product view ) but I don't want to let these orders to be automatically converted !

can you help please