How to tween multi same-filters with TweenMax (question for greensock)

I know that we can tween multi-filters like this:, 1, {glowFilter:{color:0x123456, alpha:1, blurX:3, blurY:3}, blurFilter:{blurX:20}});

But how to tween 2 glowFilter at once:

myMC.filters = [new GlowFilter(color1...), new GlowFilter(color2...)];

Looks like TweenMax is designed to tween single type of filter at a time:
glow + shadow + blur
but not:
glow + glow or blur + blur

Thanks for your help!