multiple editors on a form

Memory shouldn't get too large if the docs aren't very big.

One thing you may want to do though is when you switch tabs, call SyntaxEditor.ResetDoubleBufferCanvas on the SyntaxEditor that is being hidden. We reset the double buffer when we can detect the visibility is changed to false but sometimes if the SyntaxEditor is in the .NET TabControl for instance (instead of our tab control in UIStudio), it is never notified of the visibility change and therefore will use some GDI resources for the backbuffer. So calling that manually will ensure that the GDI resources are kept as low as possible when not needed.