Hello,
Thanks for reaching out! I do see how this would be useful, but unfortunately there isn’t a way to add a second line without doing a customization. If you would like to give this a shot, our themer’s guide is the place to start!
You <i>could </i>try using a plugin like Advanced Custom Fields, but you would still need to customize the venue template to add the field in.
If this is a feature that you would like to see added in the future, please do let us know over in our Feature Ideas Forum! This is what we use to gauge user interest in new features and help guide future development efforts.
I’m sorry I don’t have a better solution for you at the moment, but please let me know if you have any other questions.
Thanks,
Jennifer