isotope notation (add a subscript and a superscript to a character)

Is there a way to use the Hypatia Create google doc add on to write isotope notation? This would be an element symbol with both a superscript and a subscript preceding it, and sometimes another superscript following it. For example, beryllium, Be, with a 9 superscript before (mass number), a 4 subscript before (atomic number), a +2 superscript after (charge). I don’t see a way to add both a superscript and subscript to a number or character, whether before or after.