Tabbar Close Button Visibility and BeforeCloseEvent

Tabs Propery : Close Button Visible OR Hidden
I wish to have a tab property on creation with Close Button Visible or Hidden.

Tab Event : onBeforeClose
Also I wish to have a Tab’s onBeforeClose Event so to avoid any accidental closure of a tab before completion of a tab’s task.

Thank you for your request.
We’re planning to rework and extend the event system to make the response more flexible, so the beforeClose event for the tabbar is planning to be added.

Tabs property feature request was also sent to the dev team, so it also may appear in the future updates.