The best way to achieve simple automation?

Hi all, I often have a need to do the following sequence of edits:
- add a keyframe at playhead postition to the selected audio clip
- move playhead 3 frames to the right
- add a keyframe at the (new) playhead position
- set volume to 12

What would be the proper way to do that automatically (on a keyboard shortcut I define) in Resolve 20 free version?

Keybindings are available for all those functions (i.e. add keyframe, move Playhead, adjust node level) and these are user definable via the Keyboard Customisation window.

Macros may be created with, for example, StreamDeck hardware including all those Resolve functions and assigned to a key in the layout.