My Olsen theme doesnt have post utilities menu?

Hi,

Can someone please help..

I am using Olsen Light theme and have read that in order to have a main post image and a subsequent gallery underneath in the same post I need to use a post utilities feature that is not showing on my page anywhere?

Can someone either tell me how to find it/install it, or is it a feature of the pro version only?

Site – thespindrifters.com

Thanks!