How to get a list of all AutoText files in the left pane

[win]

The above code has been fixed, my English is not well expressed, using Google Translate, this is also a big obstacle for me to learn programming, and Google search engine is not available in China.

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Currently, after adding an AutoText, it will open. I want to add a checkbox to the dialog that will be open when it is selected.  This will be more convenient