Hello Fabien

Just go to the integer column settings, and enable this check-box:

That will display the thousands without any separator.

Hi again Fabien

Unfortunately, you can't skip thousand separators on float columns. This would require adding a new number format, and it can't be easily done, since it is used in a lot of other segments of the plugin, and simply modifying the number format in the code is not enough. It needs to be added by our developers, so please feel free to add it as a feature suggestion on this page.