I recently started using TexStudio and it is a huge improvement over the experience with TexMaker. I have a question regarding the pdf viewer. At some point I closed the panel which holds the table of contents of the pdf, and I can't seem to get it back.
Where can I find the setting regarding the hide/show panel of contents in the TexStudio pdf viewer? (my operating system is xubuntu)
Thank you Torbjørn T. for your answer. To justify posting this simple question, here is a screenshot of the menu I have, with the Show menu arrow barely visible.