Allow multiple addressable outputs for "ui-template" node

### Description

In order to reduce the number of nodes used for developing controls, I suggest enabling multiple outputs for the ui-template node. This feature would bring immense flexibility in intelligently utilizing control resources for projects.

Despite being aware that culturally, users and developers of dashboards and their features greatly appreciate creating an observation environment, there are projects like mine that aim to utilize the dashboard for control purposes and its many possibilities alongside data observation.

Below, I provide an example of the suggestion.



`node.send([{payload: "ON"}, null]);`

### Have you provided an initial effort estimate for this issue?

I have provided an initial effort estimate