Thanks for trying to help me out.
The quetion is not so much on the actual movement but on how to access individual object instances and all object instances. In Python that is.
I am able to find a For each Sprite in python.
It would have been natural for the python part to be able to iterate over all Sprites using something in the lines of
for instance in Sprite
instance.X += 1
or something like
[code:38rp9999]Sprite[index] += 1[/code:38rp9999]
Another option would be to use the event picking mechanism and execute the python script as part of the action. Would that be possible. I think it would be a nice option to have the python script as an action of some event.