I finally decided to create my first tag plugin in python
So, here is a plugin tag that you can add to any object.
If it is a polygonal object and you select any of its points, it will show the index number of that point next to the point itself. If you select any of its polygons, it will show the polygon index number in the center of the polygon.
You have five options in the tag.
The first one, turns on and off the display of numbers.
You can set the scale of the numbers that are displayed, the color of the numbers and if you want the numbers to appear with transparency based on they distance in the object (less distracting).
Finally, you can decide if you want to see the indexes displayed even if the object is not active.
I hope this is helpful, somehow.