Here are some of my favorite hotkeys when I work on setting keyframes, deleting keyframes, etc... all in all, operations around Animation:
Managing Keyframes:
- To set a keyframe on a given parameter, just "K"+click in the parameter field
- To delete the current keyframe, just "Delete"+click in the parameter field
- But to keep only the current keyframe, just "Shift+Delete"+click on the parameter field - To Keep the current value and delete all keyframes, just "Alt"+click in the parameter field
- Of course, "Ctrl"+click in the parameter field resets it
- But "Ctrl+Alt"+click in the parameter field resets it and remove all keyframes
Playing with curves:
- To quickly display a framed animation curve of a given parameter, just "Shift"+double click in the parameter field
- When you're viewing the Channels, "Shift"+click on the parameter field will automatically frame the corresponding animation curve
- "Ctrl+Shift"+click in parameter field(s) adds the parameter(s) to the selection (it's in fact toggling between "not selected"/"selected")
Just a reminder, almost all these hotkeys are available via the "Context Menu" key on the keyboard (at the right of the right "Alt" key) and the top button of your pen (I think :-) )