Hi, I cannot create single layouts on my new X site. I am following the instruction on your page https://theme.co/docs/single-templates. To begin working with Single Layouts, i should click on the plus sign (+) in the top bar to reveal the New Document pane, then click on Single, but there is not such an option.
Please help me and tell what should I do to active that.
Hope to hear instrution soon.
Have a great day.