We heard a few weeks ago from another user who was trying to drag and drop a preset onto H9 Control.  He had a particular preset list open and he was trying to drag and drop a preset onto a specific preset list position in H9 Control.  

Unfortunately, that isn't supported right now.  It makes sense that one would want to do that, but it never occurred to us that people might try to do that until recently.

After you drag and drop a preset onto H9 Control, it adds the preset as a user preset under the algorithm it belongs to.  If you click on the Report button in the dialog that appears after you drag and drop a preset onto H9 Control, it will tell you the name of the preset(s) that was imported and the algorithm it belongs to.