[quote=232636:@Michel Bujardet]It is extremely precious and very convenient. You basically create a window and stick it in another one. It is even flexible enough to let you take an existing window and make it a ContainerControl simply by changing the super.
If I had to replace it, I could, but it would be so cumbersome…[/quote]
It apparently was available all the way back to at least 2006’s IDE, the example in the LR is unchanged from then till now. Funny I never noticed it, but then, I’m old and my eyesight is failing.
The thing is it was not available for the single platform if I remember right.