Not sure I follow all of what you're saying, but it sounds like some of that functionality is already available. Search for "automation" in the help file and go with the first hit: MultiTrack Automation Mode - Editing And Control.
Here's one bit that sounds like something you're asking for (stretching or shrinking a range of automation entries along the time line):
[Alt-Left-Dragging] an MT Marked Area grabs the nearest boundary and stretches or shrinks all automation entries relative positions within the area, adjusting the playback timing of the automation.
Stretching marked automation responds to selected tracks, performing the operation across multiple tracks at once.
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