Loss of Coaching Box

[All_Heart]

When the coaching box is taken away from the coach the following are when he can stand, correct?

1) Timeout (10-4-4c)
2) Intermission (10-4-4c)
3) React to an outstanding play by a team member or to acknowledge a replaced player(s), but must immediately return to his/her seat. (10-4-4d)
4) Request a timeout (10-5-2)
5) Confer with personnel at scorer 's table to request a 60-second timeout for a correctable error. (10-5-2)
6) Prevent or rectify a timing, scoring or AP mistake (10-5-2)
7) Replace or remove a disqualified/injured player, or player directed to leave the game (10-5-3)

From what I've read it doesn't seem to cover getting a substitute from the end of the bench. The reason I'm asking is that a coach asked this question and I want to be sure. I told him he could but if it was abused then I would have stopped it. If the coach was allowed to stand in order to get a sub off his bench then he could theoretically run subs in and out so that he could continually stand.

I also wanted to make sure I didn't leave anything out in the list.