Often, the commentator would like to direct a private question to the vugraph operator either to keep private - or to make it easier for operator to know that some input is needed.
The problem is that the list of people at the table does not include the operator.
Since the operator bbo account / table relationship won't be known until the table is actually setup, it isn't feasible for the e-mail assignments to be the source of the information.
It seems that only a software solution can handle the Use Case.
The best solution will be one that not only helps the commentators, but
Options seem to include, but not be limited to:
1) display vugraph operator account in table's drop-down list
[either yellow or some unique color]
2) Conditional flag such that only someone who can act as operator at that table can see the operator's name
3) Choice in Chat to send private to Operator
Best implementation might consider other Use Cases such as:
A) Operator sometimes wants to identify who at table is commentator to send
A1) private message to individual commentator
A2) private message to all commentators

B1) to send private chat to all assigned commentators
B2) to see if there are any people in the room who are unlocked but not
assigned to the table
C) Commentators and Operators need to be able to communicate in private even if one or more does not include +++ in profile
[current implementation may already cover one or both directions - but I have no good way to test]
Al