In the HDK its possible to add help to multiparm parameters.
Is this possible with otls? Sometimes its nice to be able to
hide the labels for parms inside a multiparm, and put more
general help in the top level multiparm label instead.

I suppose that if theres no parameter help field there, it isnt
currently possible, in which case it would be good to know if
there are any rfe plans for it. thanks.

I think the same can be said for a callback field.

Clearing a multiparm with callbacks on each parm in the multiparm
doesnt call those callbacks, and without a callback field on my otls
multiparm im not sure how to respond to the clear event!

In general if you can do what you want in the HDK, you can bind that functionality to python. There's an example in the HDK docs, its one of the two HOM examples.

So for the callbacks you could come up with your own add and remove functions, which in turn trigger the parameter callbacks you need. I'm not sure how to create those snazzy multiparm insert and remove buttons though.

hth