You may be able to handle this with “startup actions” and $:/config/ViewToolbarButtons/Visibility/ tiddlers. If you add the name of a button to the configuration, and set the text to “show” or “hide” you can define the behaviour of the button. Also see: TiddlyWiki — a non-linear personal web notebook … BUT be aware that it says: “reveal” which is wrong. It is show / hide …