Hello EW team and others,
I'm facing a problem that might be easy to solve.
I have a main window (B1), now when I press the button below it creates a new window (B3) with the following code (B2).
However, if you change your mind, you can click on the X at the top right (B3).
What do I have to do now so that the window closes correctly and I only have the main window?
Best regards,
Justin
B1:

B2:

B3:

Full window without all widgéts:
