I have installed ibus-avro from pamac (aur) because sometimes I need to type in Bengali. From ibus input method I have added the avro phonetic and also enabled system tray option. But No where I am seeing the option or menu to toggle between avro phonetic and english (us). It was supposed be there in the gnome top panel / gnome shell (Gnome version = 3.26.2). Does anybody know how can I solve this ? Thanks in advance.