VS code snippet populate var with value of another var

Question

Is it possible to set a variable within a code snippet to the value of another already defined variable?

Take this example, I want the tab order to start at the first 1,ドル this way I'll get the auto complete dialog when I start typing, but I want the value of 1ドル to populate the value of ${copy_of_1} without having to type it out

"Var Check": {
 "prefix": "vch",
 "body": [
 "console.log('${copy_of_1}: '+${1}+' VarType: '+typeof(${1}));0ドル",
 ],
 "description": "Variable check"
}

I could set all the vars to 1,ドル which would populate all 3 with the same value, however the tab order would start at the first var, and as this is within a string i won't get the auto complete dialog