"contextual" Help (MouseEnter / MouseExit)

In a window, I have a GroupBox and a bunch of Canvas…

I add some MouseEnter (display what I call “Contextual Help” in a Label) and MouseExit (clears the help text from the Label).

But, it seems that the GroupBox have the hand… the Canvas help is not displayed.

Any Help ?

Xojo had fear and started to works fie. Sorry for the message, all is clear now.