In this video, ill be going over some of the basic shortcut keys within Cinema 4D r19 to make your workflow easier.
Alt+left click and drag = rotate your camera
Alt+middle mouse = drag your camera
scroll wheel= zoom in and out
C = make editable
S = focus on your object that is selected
V = hot menu
right click = tool menu
E = move tool
R = rotate tool
T = scale tool
Control+left click (with move tool) = extrude
Control+left click (with scale tool) = inner extrude