Does not allow custom subscript or superscript lettering not preset
Response from developer
It is limited to Unicode subscripts and superscript. If you can find one that is useful, I’d consider adding it. —glenn
Very Except …,
either on the keyboard or in one of the two lists of elements below the keyboard??
I know fluorine is just one letter - but you have the others either on the keyboard or beneath it. The alphabetical list with the “F” elements has Fe and others - but alas no F.
Response from developer
I put all the halogens under the Cl button. I tried to make elements accessible in order of (in my mind) their likelihood of appearing in a formula. So carbon, oxygen and hydrogen get their own buttons. Chlorine, fluorine, bromine and iodine are under one button. While sulfur, boron, nitrogen and phosphorus are under one buttons. All the other elements are placed in the two big lists. I hope this makes it fast for most people, but obviously if you have to type Hg a lot it will be non-optimal.