Selection.

Is there a “hotkey” that sets on selection panel the start of selection to the start of the track, zero, without changing the end of selection and audio position? That is, by default, the start, end of selection and audio position are the same. It is necessary that the start is zero, and the end, as was.

Shift + “J” selects from start (zero) to end of current selection.
https://manual.audacityteam.org/man/select_menu_region.html

Thank you!