I'm new in this, but i had the same question. You have to enable the editor as an admin changing the option WHEN EDITING TEXT to USE HTML EDITOR (SOME BROWSERS ONLY) on each user ACCOUNT information.
i hope it works!!
Text editors
picture insert editor
دا بحث کولپ شوی دی نو تاسو نشئ کولی دې ته نور ځواب ورکړئ.