I was using "change tempo to". I was dropping from 90 to 87 then next bar to 83 the ending on 80. So 3 concurrent bars with changes. However dropping by percentage -5 then -4 then -3 I got pretty much what I was looking for.

Tony


HP i7-4770 16GB 1TB SSD, Win 10 Home,
Focusrite 2i2 3rd Gen, Launchkey 61, Maton CW80, Telecaster, Ovation Elite TX, Yamaha Pacifica 612
BB 2022(912) RB 2022(2), CakeWalk, Reaper 6, Audacity, Melodyne 5 Editor, Izotope Music Production Suite 4.1