For example the tool setting. Of course you need to put your first tool in the spindle, common sense and then jog the tool down to the part. Then just go to the tool offset page and hit the tool offset set button. From there all you have to do is push the next tool button, "right next to the offset button" and simply jog back down to the part. The Haas automatically changes to the next tool and puts you back into jog at .01 and you are ready to go again. If you don't have probing---what could be easier? Once you touch off the first tool, you never change modes until you are finished with all of the tools, 20 if need be on most machines.
As for you part zero and such, if you know your location just enter it in the offset page by typing in the value and hitting F1, that's it. If you touch off on an edge and know your zero is exactly 2.1 inches from there, just go to the offset page, hit enter, then ad the 2.1 inches by typing the value + or - and hitting write. That adds it to what ever your position is.
Get some lessons from someone who really knows the machines. And, don't bring prejudices from other controls with you, that will make it harder. The Haas is a great control, user friendly to the max.
Enjoy the machines.