I wonder if it is possible, using the GeoGebra scripting, to make for instance a circle which if it is clicked on once, changes colour (from white to hatched preferably) and if it is clicked on again changes back to white/transparent.
So I bump into two problems when I try to make this:
1. I can only let it change to a solid colour (using the on-click script function SetFilling), not to hatched, as the hatching (in the Style tab) is not influenced by changing the opacity. is there anyway to do this?
2. If I click it once it changes from opacity 0 to opacity 100, so it becomes a solid colour. But how do I make sure the script doesn't end here? So I can click again and let it go back to opacity 0?
I hope anyone can help me out, thank you in advance!
The same question 
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