A sign-up list is the electronic version of a paper "sign-up sheet" on a noticeboard and can be added to any content area in a Blackboard course. It allows students to sign up for anything such as an activity where places are limited. You can use this tool to allow students to sign up for one-off events (such as workshops, revision sessions or field trip) or ongoing group events (such as seminars or tutorial groups).
If you are offering a choice of several sessions, such as three possible seminar slots each week, a separate list will be needed for each instance. The Create Group Set tool allows you to create multiple lists quickly with just one operation.
Please note that students can sign up to more than one list. Therefore, if you are offering students a choice of sessions, you may wish to group the lists in a folder with instructions telling them that they should only sign up for one of the available options.
Please follow the steps from : Creating a Sign-Up Sheet