Yep most of what CharlesinGA said about setting Parking brake and Eng running.
Since we have auto levelers , we park I set the parking brake , leave the eng running.
While my DW hits the button to get the MH leveled I get the power-cord, sewer connections out of the storage and get them hooked up , by that time she's ready to run the slides out.
Once those are out , I follow up by turning the eng off, she has the windshield cover sitting on the drivers seat for me. I slip it over the door corner,shut that door , windshield , other door corner , shut the door.
She now has the electric awing out , I lay out the mat and set up the lawn chairs and small fold up table.
All this in about 8 minutes.