Hey Alan,
there are certain styles applied to the header in Kanso, among them a 150-pixel height rule, yet they can all be easily overwritten using a child theme or by adding extra rules into the “Style: Add Custom CSS” tab of the Theme Options panel.
Regarding your second question – yes, each slide in a Revolution slider can be linked to any URL you choose, this can be set up in the editor mode for the specific slide (go to “Revolution Slider” admin menu section, click on your slider, then hover over the needed slide and click on the pencil icon to edit it): there’s a “Link & SEO” tab in the slider settings ribbon which allows setting the link.
Sincerely,
Andrii / Satori Studio