Hello Geoff,

Thanks for contacting us. Please allow us some time. We are checking the feature and will get back to you soon.

-Regards

Hi Geoff,

by now (in current version) probably extra Custom CSS must be added, I will check on my demo and let you know soon...

In that Page in Custom CSS area please use:

.white-popup-block {
  overflow: scroll; }

it will add scroll vertical for text inside modal addon, yes tested!