PayPlans - Adding Text to Order - Custom Details

I'm working with the PayPlans demo and can see how I can use ORDER > CUSTOM DETAILS to add some additional fields to the order form of a plan.

Is there any way a can add intro text into that XML structure though?

So for example the format given for the XML is..

<config>

	<fields name="subscriptionparams">

		<fieldset name="subscriptionparams">

 <field name= "statement" type = "textarea" rows = "4" cols = "25" label = "Eligibility Statement"/>

		</fieldset>

	</fields>

</config>

For PayPlans to work for my project I want to be able to add, above that custom text area a basic line of text... for example words like "Please provide an eligibility statement that includes X, Y and Z"

I've added a screenshot below to explain a bit better what I need...

Is there a way to do this?