Kevin, on Eos:
[Rate] + [Load] will collect the associated fader for control.
On Ion, the same function is accessed by [Fader Controls], press and release [Rate] (a softkey), and the press both buttons of the associated fader on the wing.
Just an FYI, in 1.4.2, pressing rate alone will collect the master fader for rate control.
Hope this helps.
a
Anne Valentino
Eos Product Line Manager