**Behavior in the editor** click in the editor on a tab-title result: the content of the tab is in focus, how it should be, what can be tested with the arrow-up/down-key of the keyboard
**Behavior of the Documents-tab in the sidebar** click in the sidebar on the tab-title of the Documents-tab result: the content of the Documents-tab is in focus, how it should be, what can be tested with the arrow-down-key of the keyboard
**Behavior of the Preview-tab in the sidebar** (the Preview-tab ist part of the plugin Preview: https://github.com/xiota/geany-preview) click in the sidebar on the tab-title of the Preview-tab result: the content of the Preview-tab is NOT in focus, what can be tested with the arrow-up/down-key of the keyboard when a very long webpage is shown in the Preview-tab
**Behavior of the Files-tab in the sidebar (the Files-tab ist part of the plugin File Browser)** click in the sidebar on the tab-title of the Files-tab result: the content of the Files-tab is NOT in focus, what can be tested with the arrow-up/down-key of the keyboard; after a release of a click in the tab-title of the Files-tab the first tool of the toolbar is in focus that is located in the Files-tab
**Possible problem** it could be that the problem in Preview is that a not existing toolbar is in focus by default after a release of a click on the tab-title of the Preview-tab, like on the Files-tab, because if I press 1x the arrow-down-key, then the content of the Preview-tab is in focus
**History** This issue is based on the knowledge of https://github.com/xiota/geany-preview/issues/15.
**System** Lubuntu 23.10 Geany 1.38