Description

On element edit pages it is currently possible to define additional buttons or action menu items that appear in the disclosure menu.

However, it isn't possible to define alternative save actions. This PR rectifies that issue by adding the ability for elements themselves to register their own alternative actions and also adds an event that developers can hook into.

From an element's perspective, this is good for a developer creating a custom element that they would like to have more than the standard set of alternative actions.

The event then gives developers the opportunity to hook into any element type to add additional alternative actions. Perhaps they could have additional actions for a specific entry type like "Save and send to XYZ API" or "Save and notify author".