1. Navigate to Control > Administration > Organization Setup > Manage Users
  2. Click Manage Virtual Accounts
  3. From the Virtual Accounts dropdown list, select the appropriate Virtual Account you wish to update
  4. Scroll to the "Select Segments for the Virtual Accounts" section
  5. Mark the appropriate Segments you wish to automatically add to a Contacts record
  6. Unmark the appropriate Segments you do not wish to automatically add to a Contacts record
  7. Scroll to the bottom of the screen and click the Save button

Note: Repeat the steps above to edit as many Virtual Accounts as desired/needed.