Prompt For Snippet: Accept (Ok) with Key binding?

One thing I'm wondering is if it's possible to have a key binding to confirm the Prompt For Snippet action. I like to be keyboard driven so having to resort to clicking the Ok button with the mouse every time is less than ideal. Would something like a cmd+enter or something like that be a good default?

And of course I didn't try fn+return which actually is the enter key. Little bit confusing, but maybe good to add to the help page?

The Return key works for me.