Custom Placeholder Functionality Request

I use the snippets all the time, and I absolutely love them! They're really the main feature that got me to initially start using Superhuman. The one thing I'd love to see added though is the ability to quickly "fill in" all of my custom placeholders when using a snippet.

I'll often have the same custom placeholder used multiple times in a snippet, and I have to go in and manually replace each instance. It'd be super helpful to be able to see each custom placeholder I've used in a draft and just drop that info in to be programmatically populated everywhere it's used in the email.

Would love to know if I'm missing something here, but if not, I think adding this would really speed up sending out emails with lots of custom placeholders!