It would be useful to have the ability to attach files to Events in Calendar. For example, adding a PDF of a detailed schedule for an event or a PDF of a flyer. Attachments might also include URLs for external links. For example, an alumna event that is taking RSVPS through another site like PaperlessPost.
This can be done by workaround: upload the document to onMessage > Content > (category), copy the link to that document and then paste the link into the description in the Calendar Event.
FA, often there are supporting staff updates that could be referenced. Currently we use Smartsheet and often attach additional info on day-to-day activities.