Making drums with ezdrummer and cubase.

This is how I do it.

• Right click to open the contextual menu

• Select Ezdrummer (you can use alternatives like virtual drummer if you like).

• Hold right click on the white zone and release on "draw".

• Left click to draw a single bar.

• You can edit Ezdrummer (Drum kits, Volume, etc).

• Change the snare, the kick, the crash or the whole set if you want to. (pro tip: Turn off humanize).

• Close the vst interface and double click your bar to open the piano roll.

• With your draw tool you can put notes on the piano roll and this is what you need to know

C1-kick
D1-Snare
F#1-Close hi-hat
G#1-Foot hi-hat
A#1-Open hi-hat
E0-Crash 1
G#0-Crash 2 
E1 to C2(white keys only) - Toms (lowest to highest)
This are the most important keys but you can check the others.
Change quantize(Upper right)  to use 4th notes, 8th notes, 16th notes, etc. When you need it.

• This is how a REALLY basic drum pattern looks like:

1st beat: kick
2nd  beat: snare
3rd beat: kick
4th beat: snare
on top of each beat add a hi-hat.
Once you have finished close the piano roll (grey x under the BIG red one)

• Hold ALT and drag your bar to copy it.

• Like this!

 You can edit each bar individually. 

• Experiment with patterns.

• Create dynamics songs with them. (This is not a good example :P)

That's how I do it(except I use a lot more bars).
But wait there's more.

• Click on inserts(left sidebar).

•  Click on some empty space and Voilà.

 You can add Reverb, EQ, distortion and more.

• Use this inserts to create a very realistic drum sound(Warning: real drumkits still are better).

Very important last words: Have fun experimenting!.