Graph Editor with Maya Controls Preset


I’m new to Blender (From Maya). Using the Maya controls present, how I can select and edit Bezier handles for keyframes using the Graph Editor? Simply left or right clicking the mouse does not seem to work.

Thank you in advance.

Can you select a channel ?
Can you select a control point ?
Are you in edit mode (Tab) ?

Select the handle (LMB) and press W to drag

For more help please supply more background info and screenshots/screencasts/example blend files etc so it is absolutely clear to anyone what the problem is.