QUES 1
I may require a script to perform a certain function. One thing it will have to do is to paste a mask into the channel layer of a Smart filter. i.e. When a Smart filter is created, an additional channel layer associated with the Smart filter is also created to house any mask that is applied. That channel is created with visibility turned off. To paste into that channel layer, the visibility has to be turned on, the mask pasted in, and the visibility turned off again.
I'm not asking how to do it, but whether it is a straighforward job to do such a thing in a script.
QUES 2
In terms of getting help from this forum, does it matter if I use Applescript or Javascript? Which do most people use? Do script writers specialise in one or the other?