I have an issue with my text editor for Moodle. I experimentally uninstalled TinyMCE's text editor from my platform, afterwards I installed Atto HTML editor, but I think it isn't working properly: for example when writing lengthy course content, one would have to scroll up all the time in order to access the toolbar. Also the "show more buttons" tab is not available, as well as the options for text alignment . Moreover, I'm unable to access the text editor settings from Site Administration/Plugins/Text Editors, because the settings button is gone.
Is there any way to install TinyMCE HTML editor again or fix the Atto one?
I'm currently running Moodle 2.9.1+ (Build: 20150828)
Than you for your assistance in advance!