It occurs to me that I've posted very close in time with all of these postings, really I should have edited the old posts, but I'm sure that you're intelligent enough to work out that you need to look down the list and read the older ones first or they'll make no sense.
And
This one says band or troop. Hmm, definitely looking like Troop.
Right, I decided to try
Ask Oxford to put an end to my ponderings and as interesting as a machination of monkeys sounds, it does seem to be wrong, the terms provided here for the name of a group of monkeys are: cartload/tribe/troop or wilderness, which it says is possibly fanciful.