If you haven't created your portfolio, a button with "Add Portfolio Items" will be in the middle of the page. Ignore that and click on "Edit Settings" on the far right of the bar containing the name of your course.
There will be several options listed. Scroll to the bottom of the page and click on the plus next to WebMeeting.
Check the box "Display a web meeting on this page" and hit the "Save" button.
Go back to your portfolio page by following the links at the top of the page. You will now see the addition to your portfolio page for your Web Meetings. Other people will see the "Participate Now" link while you see both that and the "Moderate Now" link.
Access: Tell participants to go to your course and click on the "view" link under your name on the Class List. They can then click on the "Add to Bookmarks" so they will be able to access it the next time from the Start Page for UAS Online in the ePortfolio list.
The creation process is the same as described above, however, because the web meeting is not in a class portfolio, you must provide Review Access for participants by adding their name to the Reviewers from your Manage Page/Security Settings tab. You will also have to send them the URL you need help please contact the firstname.lastname@example.org.