Sorry, I had a bad cold and was not able to work at the computer these few days.
Nevertheless I’ve done my homework and here is the results
- If you add in Text pane “[[” (double square brackets) TB will show you all notes in current container in popup menu
2a) If you continue and input any letter/symbol TB will show you all the notes and containers in the document, that contain the given letter/symbol
2b) If you add “/” (backslash) after square brackets TB will show you all the containers in the document
If you like to see the list of all notes in the selected container (which is reasonable because we usually do not remember the names of the notes, we remember that "it should be somewhere in that container), you should do this additional steps.
3b) Select the container name from the popup menu and press the Return key (
4b) Input any symbol and then delete it.
I’ve tested the same approach using containers with parentheses and back/forward slashes in their names. There are no problems with parentheses. But the approach doesn’t work if container has a forward or backslash in its name.
Hope it will help someone.