Automate demo movie with blueprints

I would like to automate my demo movie making process
Placing my actors in a demo scene
Pointing the camera at the first actor
Using blueprints to insert a keyframe at time 0
Moving the frame to frame 20 (for example)
Moving the camera to a second actor
Inserting another keyframe via blueprints
I request a blueprint node where I can tell it the sequence,track and frame number to insert a keyframe
Also a node to rearrange existing keyframes at regular intervals