If any one has read Ray Camden's blog then he has mentioned about putting variables in HS+ snippets. But not only that you can also have the same kind of functionality as DWMX Server behaviors i.e. editable variables. Here's the how part:
And that's it, you now have a quick editable comment. All thats left to do now is from the snippets pannel execute "Personalised comment".
There you have it, your first customisable snippet.