Did you take a look in the appstore? https://appstore.home.mendix.com/link/app/894/Mansystems/Tab-Extension-(Dynamic-tab-names,-Buttons)
Regards,
Ronald
We had to create a custom widget to achieve this. The JavaScript needs to delay for a short while before changing the title as the Mendix application itself will also try to set the page title, which can mean it being overwritten. Adding the delay means managing page transition events as a user clicking through the back button quickly could cause a previous page’s title to be shown for example. In this case you need to cancel the title change if the user navigates away.
A better way to handle dynamic page titles as part of the Mendix platform itself would be great.