Possible to restrict GP Premium plugin to one site only of a multi-site?

Hi,

I've run into a problem. An apparent conflict between GP Premium (specifically the Typography add-in, I think) and another plugin, Styles, that can also be used to change fonts.

On a single site sandbox with the GP plugin inactive, Styles works perfectly. With the GP plugin activated, Styles is completely without effect. This isn't a priblem on a single site since I ponly need to use one of the other. The problem comes on my multi-site.

I am using GP to style one website on the multi-site, but I want to use Styles to style another website. I can't do this. GP Premium plugin activated across the network, while Styles works partially on the target site it's impossible to use it to change fonts. The input field for fonts remains blank.

I jhave looked for a way to have GP Premium active only one the site where I want to use it, but that doesn't seem to be an option.

Do you have any advice?