How to change seasons?

Very simple question here; I can’t figure out how to change the global season? My current renderer is Vray, and I’m using Rhino 6. Where do I find this dialog box?

Hi, You can change the Season in which plants will render (as long as you see them using the Realistic representation mode) from the Document Properties:

You can also override this setting by plant individually if you select it and from the Edit Panel > Render tab, click “Ignore Global season” and set a different season.