How to make the main window always stay like a widget

[iieeann]

Hi, I can't find the option to to make the main windows always stay. Once click on any entry on the main windows to activate the paste, the main window will automatically disappear. I edited the copyq.ini
Activate_closes=false
in order to make the main window stay after pasting, and yes it did. I don't understand why this option is not found in the program settings.

However, I also found that if i press Esc key when the main window is active, it will also disappear. For this i can't find any solution yet, please guide on how to disable the Esc key to hide the main window. I removed the shortcut of edit=Esc but yet not related to this purpose.