Can I use a signature pad like Topaz?

From TherapyCharts

We do not currently support the Topaz device. We currently perform electronic signatures using a signing pin and public/private key cryptographic methods. We see value in allowing mental health workers to allow their patients to "sign" document using a signature pad or graphic because patients would not have a signing PIN. We continue to welcome feedback from our customers on what features they would like to see in development.