I'm JJ from ContactUs.com Support. Well you can configure your Contact Form's call out button to say "request a brochure". This can be done by accessing your ContactUs.com account (not on the plugin; the form configuring needs to be done directly on ContactUs.com) and follow this path:
Form Settings> Configure Form> Additional Settings> Alternative Submit Button Text. Here you can configure it so the button can say whatever you want.
Or if you're looking for a nice side tab button, this can be done: Form Settings> Configure Form> Tab Settings> Create Tab. This option allows, creating a tab button, which is fully customizable.
Now for your question on the URL or page post this has come from, we dont offer that at the moment, but it's definitely something we can look for a future release.
Feel free to browse around and let me know if you have additional questions.