Subscript and superscript

[nickovchinnikov]

I can't add subscript and superscript to one symbol on the same time

[mvoidex]

It's just sequence of unicode symbols: T₃⁻¹
I'm afraid it's not possible: https://superuser.com/questions/1387577/any-chance-to-get-a-superscript-directly-on-top-of-subscript-in-unicode