Question: use enum values in custom error message

I have the following schema

```
const shared_schema = {
$id: "shared_schema",
title: "Shared Allowed Values",
definitions: {
routes: {
enum: ["R1", "R2", "R3"],
errorMessage: "Route must be a TOC-specified allowed value: R1, R2, R3"
}
}
};
```
Is there any way i could have all the enum values defined for routes inside my errorMessage? As i don't want to write all the enum values again and again. May be something like using a json pointer ${/definitions/routes/enum}