It would be very handy to be able to click or drag a snippet over to some highlighted code to cause the snippet to wrap around said code.

This would require a new type of snippet, consisting of both a starting code block and an ending code block.

Example:

Starting Block contains:
<p align="justify" style="whatever; you want">

Ending Block contains:
</p>

User drags Snippet over the following highlighted text.
Dolphins love Coffee Cup software.

The result would be:
<p align="justify" style="whatever; you want">Dolphins love Coffee Cup software.</p>

I frequently use the same blocks of code and text when creating new products on my website:
www.BassBurglarAlarms.com. It would be very handy for me to have this sort of "wrap" function with snippets.