There are three options in the "Bookmarks Toolbar >" Menu.
Currently, the Ctrl+Shift-B shortcut will toggle from "Only Show on New Tab" to "Always Show", and then to "Never Show" (never back to "Only Show...").
When toggling away from "Always Show", can we have it so that Ctrl+Shift-B goes back to the previous selection, not blindly to "never".
I.E.: