How do I shift a dash pattern on an open curve?

Hi there,

I need help figuring out something. I am trying to create an offset (or shifted?) dash pattern. In my script, I have some tween curves with dash patterns and I want to shift some of them. I need to keep the lengths of the dash pattern (fast length and gap) the same though, I just want to shift the dash pattern along the curve.

In the screen cap, I drew what I am trying to explain. And I have a screen cap of where I am at in my script. Does anyone have suggestion of how I can achieve the dash shifting?

Thank you!

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