From Upcoming, choose New event. You can start blank, from a template used for a past event, or by importing pasted text, an email, a CSV contact sheet, or a description of what needs to happen.
Paste or upload what you have. Homestand reads it and proposes a plan split into three groups: Ready to add, Needs confirmation, and Could not determine. Nothing is added to the event until you review and confirm it.
Templates carry over requirements, tasks, and participant groups from a past event of the same type, so recurring events don't start from a blank page.