Ok, here you go. There are various screens and filters all over this engine which may be a little different than what you're used to seeing on other bikes.
First, remove the drain plug from the bottom of the engine with an allen wrench. Be mindful of the copper washer sticking to the bottom of the engine if it's not on the plug. It may fall off into your drain pan. IT IS REQUIRED for reinstallation. Torque for reinstall: 18.4 ft/lb
Next, remove the 3 8mm bolts from the paper cartridge filter cover. The O-ring is installed on the cover itself and is re-usable many times if handled with care and cleaned before reinstallation. There will also be a tension spring between the cover and filter that will fall out. This is normal. Use a dab of grease to hold it in place during re-installation or tip the bike onto its left side and let gravity do the work. Not a big deal. Reinstall torque on 3 bolts: 4.3 ft/lb
Here is where things get a little more unique. On the lower left side of the engine you'll see a small plate secured with 2 hex bolts. Directly forward of that plate you'll see what looks like another allen keyed drain plug. The plate and the plug both have metal screens behind them that must be removed on those 1st critical oil changes. The plate has a dual screen element behind it, which is basically a screen installed in another screen. They can be separated once removed and inspected/cleaned individually. If you look into the crankcase behind them after removal you will see the drain plug hole! Dual screen bolt torques: 4.3 ft/lb
The forward plug mentioned above has a single metal screen behind it. Sometimes it can be tricky to remove. Here is a very special tool I custom fabricated in my office

There is an O-ring installed between that plug and the screen that can be challenging to snag. If you use patience and the "special tool" or a pick of some sort you'll extract it and be able to reuse it many times. Plug reinstall torque: 18.4 ft/lb
Chances are you're going to find a fair amount of ferrous metal on the magnetic drain plug. Normal. The metal screens may have bits of metal and some orange/red chunks of gasket material. Normal. You will probably see this stuff for several subsequent oil changes. Normal.
Oh yeah, the metal screens can be cleaned with gas, diesel, kerosene and the like.
Hope this helps you out.
Edit: Refill with whatever oil you have chosen. Go to the upper level marks on the sight glass initially. Start it up and let it run for a few minutes. Shut down, let oil drain back into crankcase and add oil if required.