If you set this option (General -> Editors -> Text Editors), then when you click End cursor is immediately after the last significant (non-Space and non-Tab) characters. This is inconvenient because to verify "whether the end the space or tabulation?" must once again press End, except at the ends of lines is a lot of unnecessary hollow characters.
Disabling this option is not an option, because off the possibility of extended keys Home, which works correctly.
The first press End cursor should go to the very end of the line, while the second (if necessary) - established after the last significant character, as it is in some other text editors (there is a special option for this).

Thanks