I want to change the entire tempo of a song (every pattern laid out in the pattern grid thing) at a certain point. I've found out how to change the tempo of just one pattern by right clicking on the master tempo at the top and going to 'Edit Events', where you can map/draw out the tempo for whichever pattern is selected.

The song I'm messing with has over 30 patterns and i have 5 tempo changes I wanna place in it, so going pattern-by-pattern would take some time. Is there any way I can output every pattern to a 'Master Pattern' or something of the sort, then change that tempo's events via the Edit Events button. Or is there maybe some other method of doing this?