To preserve the take lanes, you will want to create the new track, show lanes, and click the '+' to add 8 additional empty lanes (or you can start by adding 6 lanes to one of the existing tracks). Then Ctrl+Shift+drag copies of the clips (selected by lasso or by clicking the track number) from each source track to the target track. Shift will ensure that the start times are preserved.
Note, however, that the copies from the first three lanes of the source track are always initially pasted to the same three lanes of the target track, regardless of where you're hovering when you drop them. So you'll need to drop them, and then immediately Shift+drag them up to the desired lanes as necessary. They stay selected, and the momentary overlaps with previously dragged clips in T1-3 shouldn't cause a problem so long as your editing mode is Blend in Preferences. You'll also want to make sure that you're not set to Paste as Linked Clips.