Showing file name first in Task Bar

If I use the built-in editor to edit a file, its path name will show first in the task bar. If I have many such editors open at the same time I will end up with several programs in the task bar with a title like the following:
/var/...
/var/...
/var/...

Instead of starting the title with the path, I would like it to start with the filename since this is more likely to be unique, so it would instead say:
confi...
postg...
robot...

The whole title should for example be
robot.txt - /var/www/html/robot.txt

This would really save me a lot of time.

I can make WinSCP not show the path optionally:
https://winscp.net/tracker/1028

Note that this cannot be dynamic, based on actual taskbar button size. Windows does not support this.