In technical circles, "CP" often stands for "Copy." In the context of MEGA, users often look for ways to quickly copy entire folders from one account to another without downloading them first.
One of the most common reasons people search for "mega folder cp" is to find ways to bypass the tedious process of downloading 50GB of data only to re-upload it to their own account. https meganz folder cp upd free
This refers to the secure URL of the New Zealand-based cloud storage provider known for its end-to-end encryption. In technical circles, "CP" often stands for "Copy