It would be cool if we could edit in the Navigator Pane or have a similar view for this type of editing. Like a time based grid with selectable columns (for time based selections across all tracks... set a resolution, click a column and copy/drag/cut/past/replace/etc). On the vertical be able to easily activate/select/deselect tracks that get snagged by the column selections and moves. Like clicking in the top left "cell" selects all tracks for editing. Drag down over the track numbers to select rows (or Shift Click) and Ctrl Click just to select specific tracks.
So...
1) Select the tracks you want included in your column selections by clicking buttons on the far left/vertical
2) Set a time based resolution that the columns will separate into (and have a separate option for time range selection like in the Time Ruler
3) Click a column button (running along the top of the grid) and drag it or cut it or copy it and have keyboard modifiers or a module to set replace/insert and move over/etc.
Not sure how other DAWs do this but to me that would be a great songwriting workflow. I'd use it all the time.
Matrix View, as interesting as it is, is not a suitable option for that type of quick arrangement work.