With LCARS 7.1 you can now insert buttons into the LCARS sidebar. HTML instructions are here. I have also added a link in the Menu to the sidebar buttons instruction page. The instructions apply to all themes and the buttons are color coordinated according to theme.
If you look to the left of your screen you will notice an example of a button in the sidebar labeled "ENABLE". Click on it and it will also take you to the HTML instruction page.