Meetup – How to Get All Meetups Attended

Use their api. You'll need your api key

http://api.meetup.com/cities.xml/?key=API_KEY_HERE&order=members&page=100

The best way to handle it so far:

After creating the event,

1. Click on the meetup to go to its page.
2. Click "tools" (immediately above the event host's profile picture and next to the "email attendees" button).
3. Click "edit RSVPs".
4. Use the find member function to display the member you'd like to reserve a spot for.
5. Select "attending" next to his profile picture.