Action Possible? CMD + 2 Finger Swipe Up/Down

Hi there! I use an audio editing tool that allows you to expand and contract the wave form (TwistedWave) by holding the CMD Key and swiping up or down on the trackpad. Can I use BTT to assign a gesture to this? A 'Spread with thumb and 2 fingers' seems a logical choice, as '2-Finger Swipe up/down' is already assigned an action in TW, as well as 'Spread with thumb and 1 finger.' Can this be done?

I'd like to assign this on both my MBP trackpad, as well as the Apple Magic Trackpad 2 that I use when recording. Thanks!

MacBook Pro (Retina, 15-inch, Mid 2015)
Mojave 10.14.6 (18G9323)

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