Keep all left Side Bar windows open all the time

On the Main window in the in the left Side Bar…
Why must I constantly select the blue “More” key to open all windows?
I want all windows to remain open all the time!
Thanks Peter

More is a folder to hide other folders you do not necessarily want to see all the time, so it will be collapsed.

You add a folder to More by right-click and choosing Hide, and you remove a folder from More by right-click and choosing Show.