Congrats on the new machine!
As others have mentioned, the AUX PTO is for the quick attach and for things like grapple jaws, power angle snow blade, mini-hoe bucket curl and dump, etc...
You pick up the attachment, close the quick attach with the knee lever, set the parking brake, get off and move the hoses from the quick attach to the mini-hoe, snow plow, grapple, etc...
Then you get back on, take off the parking brake and off you go. Do your work, then repeat in reverse order to remove the attachment.
In all seriousness, you can change a non powered implement without getting off the seat in about 15 seconds. If it requires the changeover of the quick attach hoses, or if it requires the connection to the main PTO, add another 15-20 seconds. So half-minute implement changes are to be expected and if you've ever used a 3pt hitch attachment.... you'll kick yourself for not getting a PT sooner. :laughing: