Character set as a template

Hi, is there a way to create a preferred character set (or template) that could be used to create the base characters required for different type libraries?

What do you mean? Have you tried using list filters?
I have mine set up like this:

You can easily add filters at the bottom left: Add List Filter, then simply type in all the characters you want in that list. To get them neatly separated with the title Character Sets in the manner I have in the screenshot above, this thread will help:

Perfect, this is exactly what I was looking for. Thank you for the link.