The scheduling waitlist can be accessed under the Scheduling menu of your EMR (Scheduling > Scheduling Waitlist).
This should bring up a list of any existing waitlist events. You can filter this using the provider drop-down menu or sort by clicking on a header (Date Added, Preferred Date, or Priority).
Each event in your waitlist has three actions: add, modify, or delete. The add option (green + icon) will bring up the usual scheduling window with pre-populated details from your waitlist event. Once you add this to your schedule, it will automatically be removed from the waitlist.
To add a new event to the waitlist, click on the plus icon in the upper-right corner of this window. This will bring up a window that looks very similar to when you are adding a real event to your schedule with additional fields for "Priority" and "Remove from Waitlist On".