After logging in, navigate to the page with the calendar you want to update. To access the SIGs, hover your mouse pointer over the “SIGs & Committees” button on the top-side global navigation bar and select the first link “SIGs (Shared Interest Groups)” that appears:

Select your SIG from the list on the right-hand side local navigation box:

Click on the appropriate work area branching off your public facing page (work areas are restricted to either all SIG roster members or a specific subset of the SIG roster):
The work area circled above is open to the entire C&T SIG membership; the process is identical regardless of what specific work area you are working in.
Click on the “Calendar” link circled here:
Click on “New” then “New Item” found here:
Complete the form found here and press “OK”:
To edit or delete an existing item, click on it within the calendar view and hit the “Edit” button taking care to choose the correct option if it is a series recurrence and edit as needed: