[MrMoke]

I suspect that the developers decided that the "move at speed" was redundant, and not as flexible as the standard "move" when used with the available options.
Additionally, use of the standard methods encourages students to experiment and gain a better understanding of coding and logic flow.

My little fishy snippet demonstrates a way to accomplish the task in either version of Alice, and also points out possible timing issues that good programmers might often need to address.

It also demonstrate that .a3p worlds still need to be zipped to be uploaded to the forums.