The idea is to create an entry which we will use to
start rolling the ball. That entry contains:
the sequence of commands we want to execute in a loop, here {Ctrl Backspace}{NoSpacing} for example:
- {Ctrl Backspace} to delete the last word.
- {NoSpacing} to avoid spacing
And at the end of this entry we append a PickList command that will display a single item offering the possibility to continue rolling the ball if we want to:
The Pick List used to continue rolling the ball has a single item that has exactly the same sequence of commands as the entry we created to start rolling the ball. It is added to the Pick List Glossary:

So that when this item is picked, the ball is rolled again:
In our example the last word gets deleted
And the same pick list item is displayed again, enabling you to roll the ball again