Execute a sequence of actions in a Bot

I’ve created a working bot that copies data from one table to another based on a schedule. I now want to write a timestamp to the table the data is copied for. So I combined them both in an “execute a sequence of actions” action. But I then find I’m not allowed to choose this new action in the “Action to Run” section of the step.

Is this by design or a bug? If its by design, is this getting canned at the same time as Workflows and Reports?

I managed to get it to work by adding a following step which called the timestamp action.