Hi,
I’m looking for the folder where the Hub stocks the presets I’ve registered. Here is a picture.
I have a Machttps://www.dropbox.com/s/k5cfjewphepodz0/Capture%20d%E2%80%99%C3%A9cran%202017-04-15%20%C3%A0%2015.19.05.png?dl=0
Right click on the template and choose “Show in Explorer”.
Regards 
HAhaha… it was so simple and I tried to search on each folder deep into my Mac, thanks !