They responded to my email asking for my URL we use to connect and they
would forward my request on to their development team. There are a
number of schools requesting this. So from this exchange with them, I
assume there is no way to do it currently...
I have reached out to Renaissance Learning support asking them if they
provide the ability to plug in the XML code to set this configuration
setting. As soon as I receive a response, I will post what they say.