[Kris75]

Create 2 markers, one at the start of the Consolidation point and one at the end.

Double click in the marker ruler to highlight the selection. Then extend your selection across all tracks.

ALT + SHIFT + 3

Wait.

Export to new location/folder

Burn or FTP.

I understand not wanting to go to absolute 0 if you are using an FTP to upload tracks, but otherwise it is the best solution(as others have said.)

There will be no timing issues if all of the tracks are consolidated at once with the same start point.