"Global" as an optional property: Expanded

[JoanJuan10]

Is your feature request related to a problem? Please describe.
It is not related to a problem currently in the game

Describe the solution you'd like
I have been developing a homebrew script which has a book that can be given to any player and it would require a custom "card signal" to send a message to the players having the book, similar to how Lil'Monsta can be held by any minion.

I would request for this parameter to be a list of strings instead of only one option so I can enable this for more alignments.

Describe alternatives you've considered
I have an alternative but it requires me to create repetitive JSON structure that does not fit nicely with the script:

"special": [
      {
        "type": "signal",
        "name": "card",
        "value": "Tienes una Death Note. ¿Escribes a alguien?",
        "global": "townsfolk"
      },
      {
        "type": "signal",
        "name": "card",
        "value": "Tienes una Death Note. ¿Escribes a alguien? ",
        "global": "outsider"
      },
      {
        "type": "signal",
        "name": "card",
        "value": "Tienes una Death Note. ¿Escribes a alguien?  ",
        "global": "minion"
      },
      {
        "type": "signal",
        "name": "card",
        "value": "Tienes una Death Note. ¿Escribes a alguien?   ",
        "global": "demon"
      },
      {
        "type": "signal",
        "name": "card",
        "value": "Tienes una Death Note. ¿Escribes a alguien?     ",
        "global": "traveler"
      },

      {
        "type": "signal",
        "name": "card",
        "value": "Debes pasarle la Death Note a alguien. ¿Quien?",
        "global": "townsfolk"
      },
      {
        "type": "signal",
        "name": "card",
        "value": "Debes pasarle la Death Note a alguien. ¿Quien? ",
        "global": "outsider"
      },
      {
        "type": "signal",
        "name": "card",
        "value": "Debes pasarle la Death Note a alguien. ¿Quien?  ",
        "global": "minion"
      },
      {
        "type": "signal",
        "name": "card",
        "value": "Debes pasarle la Death Note a alguien. ¿Quien?   ",
        "global": "demon"
      },
      {
        "type": "signal",
        "name": "card",
        "value": "Debes pasarle la Death Note a alguien. ¿Quien?    ",
        "global": "traveler"
      }
    ]

Explanation: Those are 2 questions in spanish that could be asked to any player. For it to work some spaces at the end have to be added so the system recognises them as different card signals instead of it being the same one and thus creating a bug where only the last one remains.

Additional context
Here is the final result:

As a Townsfolk:

As a Minion:

[bra1n]

I guess I could just add a global: "all" property that would allow you to show this card to all players, regardless of current character type. Would that work for you?

[JoanJuan10]

For this situation it would work nicely. But I was thinking more likely for other possible situations where only some types of roles could access those signals and actions (For example: Only for Townsfolk and Outsiders)