Ue4 Editing/Refine Animation curves from Livelink

Hi im Pretty new to unreal, im using Livelink & apple arkit to drive some Facial Animation im Getting some pretty good results but its not as responsive as I would like. im noticing some blenshapes arent fully activating only 20-40% of their full potential, is there a way to Multiply the incoming Animation curves? for example lets say my Blendshape MouthFrownRight is only coming in at .2 via livelink, in unreal can i multiply that so that it activates closer to .6 or .8

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