Add triggerbutton for content entries to trigger external actions for backend users.

[psal0]

Feature request: I would be extremely helpful, if i could add a UI button for backend users to trigger an external action, e.g. "Export". All the button would need as a parameter would be an external url and the content record id could be attached as a url param.
E.g. Button "Export", URL: https://api.whateverexternalurl.com/triggerme.html?contentid=xyz

Then the external service would use locomotives API in order to fetch that content data.