I am finding a couple of issues with the ADDITIONAL DATES tab which, although they don't prevent using the feature, they do make for a more cluttered and confusing display.
1. ) Some information which has been omitted from the BASIC INFORMATION by settings in the Dashboard Configuration are still offered to the submitter in the ADDITIONAL DATES form. In my case I had deleted Registration and Registration Cutoff inputs but they still appear as entry text. Yes I can ignore these but having them follow the Dashboard Configuration preferences would make for a much cleaner and less confusing for for the naive user.
2. ) It would be much better for the add/delete/move selector buttons to be in a horizontal format. As it is these buttons force extra linefeeds which unnecessarily consume screen space and make it a bit harder for someone submitting many dates.
I'm attaching a couple of screen shots which illustrate the problem. I'm finding in general that the JSN Meetup template consumes a lot of screen real estate to the point where I'm wondering if it is the best choice for a data-intensive site.