Previous/ Next navigation for projects

Hi,

I love SKETCH. However, in my search for my perfect little website there is an addition to the theme I’d LOVE to have. I think the feature may not be easily added into the existing theme but I thought I’d ask.

See, I love being able to add projects and have them automatically displayable according to type. However, once such portfolio is generated and displayed, there is no way to navigate between the projects easily. The user has to click “back” on the browser to view all the projects again once one project has been selected and that’s inconvenient and defeats the purpose of gathering all project of the same type together, IMO.

I came across a theme that offers project navigation which is simply perfect. https://espieddemo.wordpress.com/portfolio/chrome-os-camera-app-icon/ I’m talking about the navigation on the side (Next project/ Previous project and back to view all in a category).

I may be asking the moon here, but I’d be content with a simple, text version of “previous/next project”. OK it wouldn’t hurt if I could also have “view all”, but it’s not necessary.
Is there a way for me to extract the code from espied and “plant” it in Sketch (like in a child theme) or maybe just add something?
I don’t want to use espied because the look of the theme is not compatible with the visual style I want.

Thanks so much!!