Included in the Developer Toolbox Update Set available on Share (link to Share in the post).

Simple form UI Action on the Scheduled Job table. Will kick off a job after confirmation. Will notify the user to either save a modified record or reload it before it will run the job.

Attached are XML files for the UI Action and UI Message records so you can just import them into your instance.

As usual, test it out in your dev instance, or better yet, your personal dev instance first.

I've standardized on using UI Messages now for any message visible to users to make it easier to localize the tools. Requires the "sys_ui_message shared.xml" file attached below to be imported as well. It contains a number of UI Message records shared by a number of the Developer Tools. You may have already imported it from another post and may not need to import it again.