Trying to edit the action part to a trigger.

[wxyvk]

Describe the feature:

Hello , I am trying to edit the action part of a trigger . In the message box which goes like an alert to the recepients; currently these fields are available ctx.timestamp start: ; ctx.timestamp end: , ctx.severity, ctx.trigger name.
Describe a specific use case for the feature:
Do we have the flexibility to add fields of an index pattern that I currently have. More specifically every field that I find under discover button, would it be possible to extract it through ctx?

[elasticmachine]

Pinging @elastic/es-ui (Team:Elasticsearch UI)

[elasticmachine]

Pinging @elastic/kibana-alerting-services (Team:Alerting Services)

[pmuellr]

Given the name of the context variables, this seems like it must be related to Watcher vs Kibana Alerting.

[cjcenizal]

@pmuellr Sorry, I should give context for why I added the Alerting Services label. Per discussion with @bmcconaghy, the ES UI team will add this label to any Watcher issues for features or functionality which seem relevant to Kibana Alerting (i.e. something y'all may want to build).