; max openhelp {object} / ; max openref {object} ?

There is at least one message to max that hasn't been included in the "Controlling Max with Messages" guide.
I am sorry if this seems like a repetition of previous posts [1] [2] but the current answer doesn't get me nowhere.
If a real complete list isn't available, I would at least like to know at the moment what is the message to open the reference page of a certain object.

Thanks!