If using my TabSwitcher widget, you can dynamically set the active tab pane of a tab container. Call a microflow from the navigation menu. This microflow will navigate to a page with an entity which has a tabindex attribute. Before opening the page, set the tabindex attribute to the index of the tab pane in the tab container you want to show. Make sure the tab container on this page is ‘connected’ via a CSS class to this TabSwitcher menu as well as the tabindex attribute of the entity set in the widget.
You can set a tab to default – opening that page will show the default tab page first.