Hello @SAP/ui5-webcomponents-topic-rd,

Could you please check following PR?

Hi @JohannesDoberer ,

Have you considered the option to have a first tab which represents your default state. It could be called "Default", "Main" or something in that direction.
This way you would ensure a better user experience - meaning that the users will have an obvious option how they can return to the initial state.

Otherwise if we introduce an option for "unselected" tab container - the user has no way to return the tab container to this initial state.

Can you elaborate more on the design you have - what does the user see when you open the side navigation item.

• Case 1 - the user sees the main content related to the side nav item. When they choose a tab - the main content hides. For this case I would say it is much better for the user to have a default tab opened.
• Case 2 - the user sees the main content and it stays opened even after the user chooses a tab. This case would be different - it is more like collapsing and expanding of the tab container. For this we already have an attribute "collapsed". But you still need a selected tab, is this the case you are having?

BR