Donny, I don't believe you can change tempos within a style, at least I've never been able to do that. And, for that reason I use a registration to perform Bona Sera, the Tango and Jump Jive seem to work well for me.
Glad you were able to accomplish the intro change using the keyboard (I told you it was easy!
)
Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)