Is there such a thing as a "bench technical"?

[zebraman]

I would say that Case Book Play 10.4.1 Situation D supports the fact that you can call a bench T and also charge it as an indirect to the coach.

Team A coaches and substitutes are all standing during a free throw by A1. The infraction is detected by the officials. How many technical fouls are assessed? RULING: In a situation where similar multiple infractions occur at the same time, it is not the intent of the rules to penalize each individual infraction as a separate technical foul. One technical foul is charged to Team A and it is also charged indirectly to the head coach in this situation.

Notice that the case play did not say that the referee had to identify a specific player to charge it to. Sounds to me as if it was just recorded as a team technical. Notice that it was still an indirect on the head coach.