Libreoffice documentation says that there must be an "English sentence checking" page in Options > Language settings, but it is missing in my Libreoffice Writer (4.2.6.3) on Ubuntu 14.04. Grammar check did not even work on a default installation, although spellcheck worked fine. Simple grammar check started working after installation of libreoffice-lightproof-en
package, but still no "English sentence checking" option. How can I get full grammar check functionality that Libreoffice documentation refers to?