I just thought of this idea when closing an <Empty> tab in XnView MP. I thought that it would be nice to have the ability to open a blank tab both from the 'File' menu and by using a standard known new-tab hotkey of Ctrl+T - if this key is vacantly ok to use.
Currently the only way to access an <Empty> tab is to close the last remaining tab (file's tab or 'Browser' tab) that is opened.
I think if this feature ability was ever implemented then in the 'File' menu it could be simply named New tab like in modern web browsers, tabbed file managers etc
The purpose of the existing <Empty> tab feature in XnView MP is to have a free canvas for ready-to-go action, mostly for files drag n drop on a free canvas tab especially when a user may have other tabs that are open with their own file lists etc. So the purpose for this accompanying feature is to simply access this <Empty> tab on user quick choice.
I made this mock-up to show readers;

.. On the 'File' menu, a menu icon for 'New Tab' would look nice but this first won't be important to include; Also perhaps new tabs that are opened could be, for now, limited to a max number e.g. no more than 20 new tabs opened in one session or perhaps just make no limits on the amount opened.
I think this would be great feature if added, please support me guys.