I have divided stereo in mono tracks. In some moments, I want to replace the part of first track (same positions) from second track…
however, it seems hard for me to do that - i have to copy that selection, then make a new selection on first track (now i’m writing down the second:miliseconds of start/end position on a paper, then selecting same in 1st track, then deleting that, and placing the copied part)…
How I can make a selection that is made across all tracks? at this moment, when i make a selection, it is being selected only on current track… (unlike the screenshot you made)…
Click and drag, starting from the top track, down to the bottom track. If there are a lot of tracks you may want to “Collapse All Tracks” (Ctrl + Shift + C) first: View Menu: Track Size - Audacity Manual
Click and drag, starting from the bottom track, up to the top track.