Most figures V4, M4 and Genesis should have a Move eyes sideways slider in the Parameters tab. I thing from memory it is included in the base morphs and not in any additional purchased morph packages. As I have most morph package I can check for you.
When you give us what figure you are using I will grab a screenshot of where to slider is.
Thanks for all the replies. Daz Studio 4.5 Pro and V4. I can’t find the slider to move eyes together, although I found one to open and shut them simultaneously.
Edit: Okay I found (on the left menu which I trained myself to ignore), that once I select an eye (the yellow ball) that up-down and side-side sliders appear, but just for the eye selected.
And got it! just ctrl select each eye and the slider adds a 2.