Once you have allowed Input Methods, you will see an icon in the toolbar on the right (or left side on the RTL page)
Uma amathuluzi wokufaka anikwe amandla, uzobona isithonjana kuhlangothi olungakwesokudla (noma kuhlangothi olungakwesokunxele kukhasi le-RTL) lebha yamathuluzi.