folder to store pfft subpatch

Hi, this is my first post here.
Now i got the pfft vocoder up and running, i would like to store the pfft subpatcher in a convenient folder. Currently it's somewhere with the help patches, because other folders don't seem to work.
Should be a simple thing, but I can't find how to set it up so that i can save my pfft subpatches in the same folder with my other patches. This doesn't seem to be documented in the maxhelp or reference
is there anybody with the solution for this?