Are you talking about objects or subpatches?
Because in either case you'll have to save the object inside that folder (with the correct file extension)
In case of subpatches (created with patch/patcher) you'll have to do edit (opens the subpatch window) -> file -> save as
and at this point you should select your local folder and put the object there
In case of objects (patch/object) you can do edit -> file -> add to library, then select home library in the library tab and name it whatever you want.
Notice that when you save such objects, the patch/patcher or patch/object inside the patch you're editing remain unmodified: if you apply changes to such objects, those won't be propagated to the "real" object in the folder (so remember to save often)