Yes – tried it, and haven’t run into any problems so far! Each site in multisite is able to send data to separate custom CRMs, no issues.
Thanks for this awesome plugin!
For custom fields, I used css to get the same desired result:
.wpProQuiz_infopage {
background-color:#FFF;
color: #000;
}
You can then use the same css for the results section, depending on which results you show.