Typically face inward for Cat 1 and outward for Cat 2.
Cat 2 pins are bigger than Cat 1 pins.
Easiest hitching?
Hitch the LEFT arm first using 3pt control to position it at you back up. Put it on. Line up the RIGHT arm fore and aft and then use the levelling crank to get it on. Once on, return to level. Then put TOP link on, using the movement and adjustment to get the pin in, then adjust to proper length. Great thing out most Cat 1 implements, you can man handle them somewhat to line things up.