Hi everyone, I'm looking for a way of creating a Panel that can only be created once like the "Properties Bin". What i did until now is to populate the panel in the register and check if it exist or not and it work until the panel is close, i can't open it anymore. I didn't find any informations about Pane closing callback that could let me unregister it.
Or maybe there is an easiest way of doing? Thanks for help, Regard, Bertrand
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