How to enable the options in the mobile version of Composr? I tried to post add a news using my mobile. The form did not show the WYSIWYG editor functions.

I'm afraid we don't support this. The code explicitly disables WYSIWYG on mobile as that editor was not designed for mobile (e.g. has small buttons), and we wouldn't recommend any sophisticated content layout to be done on a mobile device (too fiddly).