During stop, after automation has been written or when editing automation, it is possible with Write-to-Current and a selection made, to assign the value at the start of the selection to be written over the whole selection.
I often find myself wishing to write the value at the end of the selection to be written to the whole selection.
The shortcut could be (Win) : Ctrl + Start + / (numpad).
(Yes, during an automation pass, one can select "Write-to-Start-of-Selection", but this works only if a selection was made before playback and does not work during stop and already written automation.)
(Yes, one can copy the automation at the end and Repeat-to-fill it to the whole selection. This also requires Thin-Automation and more work.)