Got a question from Ahmed who i think is using this applet's source codes to remix.

his question is:
"I mean for example im developing into a project and im begin by tools 2D Drawingpanel so have a part on project
I must use tools from 3DDrawingpanel,, and im begin develop by 2D Drawingpanel so im try use for example
(3Dparticle:A 3D particle) on drawing panel 24 so when i make it appear this massage for me
(THIS ELEMENT CAN NOT BE ADDED TO THIS PARENT) and i'll insert picture and mark from problem begin
Im waiting answer thanks so much. "