Hi @kiri.oconnor Welcome to the forum! 
Is your request related to this request? Do not require us a "ShortCut" Feel free to add your vote here.
I'm also interested to know more about your use case. New Text Blaze snippets are automatically assigned shortcuts (like /1do, /2do, /3do, and so on) which shouldn't conflict with any existing shortcut. Are you asking to remove these automatically generated shortcuts as well? Is it because they're interfering with your workflow?