CinemachienVirtualCamera script: get and set the PathPosition of the TrackedDolly by code

Hello ! I have a CinemachienVirtualCamera script, setup with a Tracked Dolly.

How can I acces, via script the PathPosition and change it ?

https://www.cjoint.com/doc/19_03/IClpZaM4v03_aaaa.PNG

Something like:

Code (CSharp):

1. public CinemachineVirtualCamera mainVirtualCamera;
2. mainVirtualCamera.body.TrackedDolly.PathPosition = 3f;

Or something liek that

I have searched but I found nothing... I hope this is possible :/

Thanks you !