Can't see "Tag Image" stage in UI

Are there any requirements for the pipeline so that Tag Image stage is visible? What is “the current image in the pipeline”?

A scenario I want to achieve using a Spinnaker pipeline is: trigger pipeline on a docker image update; test it as Run Job; in case of tests passing tag the image with some addition label. Unfortunately, I couldn’t find a way to add “Tag Image” stage.

I run Spinnaker 1.10.12.