Replace one component with another with Publisher configuration

Hello

I have configured components with several hundred configurations. To avoid having to scroll through the list of configs, I created a config publisher.

However, when I open an assembly to replace a component with the one configured by Publisher, I don't have the possibility to bring up the Publisher window!

You can only display the configs in the drop-down menu. 

If in the same assembly I add the configured component (via Add Component), then it is possible in this case to see the Publisher window.

Do you know why?