How do I get Activity page AND one or two columns on the home page in Scholar?

Hi, I've installed and gotten working most of the functions in the excellent Scholar theme but the one thing I haven't been able to figure out is how to have the Activity stream as my home page without it taking up the width of the whole page.

I haven't been able to figure out how to add either one or two columns on either side. I read the docs and searched the forums but couldn't find it.

Any help appreciated.

Thanks,

Tony