Action "Token: set context" with option to only expose specific tokens

This may be related to ✨ Make custom events re-usable for rendering and other event types Active .

How about taking this even a step further: instead of providing a list of token names, we could also allow for a yaml style mapping of destination token names with values from the current context. That would allow models to use their own token names, but when it comes to re-use custom events or sub-processes, they can map their own tokens names to those that are used by the custom event.