Yes, admins can update key contacts in Org Dash.
Admins cannot add new committee users in Org Dash; this is done in PCC (Project Control Center). However, admins can reassign committee roles in Org Dash.
The change made in Org Dashboard is automatically reflected in PCC, including updating the mailing list and adding the new member to meetings (next meeting).
Committee changes are currently handled by updating the mailing list and adding the new member to meetings (next meeting) in PCC.
Committee changes made in Org Dash are automatically reflected in PCC in real-time.
Real-time or daily notification of committee changes is important for day-to-day business and to ensure that PMOs are informed of changes in a timely manner.