It's really easy. What you do is, you add a MIDI track to your Cubase LE project (click on Project - Add Track - MIDI), then click on the pencil button (it says Draw when you keep your cursor on it for a few secs) just underneath the toolbar and draw the cursor along the grid with the left mouse button pressed down, thus drawing an empty MIDI track, which you then double-click (first, click the arrow or Object selection button far left again) - and voila - the so-called key editor or the piano roll window opens. Then you open the Devices option it the Toolbar and select VST Instruments. After that you click on instrument 1 on 2 (the black slot) and you select the drums option. The in-built lm7 drums are actually pretty good and for rock it's the Compressor option you want, but you can tweak them by pressing on the "e" button, which opens the virtual drum machine - you prevew the sounds and edit them to your liking. When you draw the MIDI notes, have the Auto Play option enabled (a button with a loudspeaker icon on it) so that you can hear what you're inputting. Then find the chart with the commands for each drum sound (kick is C1) and program away. You'll have to RTM, I'm afraid, ask around, and I'd also recommend the TWEAK HEADZ LAB for some useful info on the subject. Enjoy - it's hard work but enjoyable.
