How do you get visual studio's f1 help to show the page for the object rather than warning description?

Question

After a compile or build if I get a warning, I place my cursor in at the point neatly underlined, and press F1 I get taken to the page about the warning.

Helpful to a point....but then I often need the help page of the object...

example:

SPUser u = oWeb.Users[0];
foreach (SPRole r in u.Roles)
{
....
}

after compile, warning is issued bot SPRole and u.Roles are underlined. Press F1 on either and you get the page CS0618 instead of the much more useful SPRole