Snippets enhancement requests

Hello!

I just discovered the Secure Snippets lab, and while I am very excited about this feature, there are a couple of enhancements that could help bridge the gap between this feature and my current text expansion solution:

Fields within snippets

With my current app, I can add fields into snippets that I can customize each time I use the snippet. For an easy example, I can have the following:

• Shortcut: !greeting
• Snippet: "Hello, [name]! I hope you're doing well today!"

When I type !greeting, a little box will pop up with a text box for me to type the [name] field. This is especially helpful for longer snippets where I might have multiple such fields that I'd like to customize each time I use the snippet.

Embedded Snippets

This one is fairly self-explanatory. There are some instances where I want one snippet that contains the text of multiple other snippets. Rather than type them all separately, being able to type one shortcut is really convenient. It also helps if I want to change part of the text, as I can change the specific snippet in question rather than having to change the same thing in multiple snippets.

Happy to expand upon or clarify any of the above if it helps improve the feature request!