Is it possible to turn this van der graaff grid into a guide? They are just line paths. I have it on my masters page and I want to make it disappear when I hit the W key like my other guides. I have tried searching how to to this but from all I can see it is the Layout>create guides that is being suggested which is not what I'm after. I have also seen suggestions for right clicking on a path to give option for creating guides but that option doesn't come up for me.
I don't think you can turn paths into actual Guides in InDesign. I'm positive you can't in CS6.
However, you can merely place the paths on a layer and then lock the layer. You may also want to set the Layer Options to "non-printing" so the paths don't mistakenly get included if you fail to turn off the layer before outputting.
Creating guides from paths is more of an Adobe Illustrator thing.
The contextual menu in your screenshot is the one which appears in InDesign CS6 if nothing is selected. The actual CS6 contextual menu with an object selected looks like this...
But it doesn't really matter. There's no option to "create guides" in InDesign CS6.
In Illustrator there is such an option...
I've posted the screenshots above because often readers can get confused or misguided between InDesign and Illustrator and be searching for some feature in one application when it only exists in the other application. As is the case here.