both superscript and subscript for the same letter

[Anglès d'Auriac]

Hello
I woudl like define label where the same latter has both a subscript and a superscrpit. I would like a "P" wirh "cav" as subscript and "max" as superscript. Mixing _ and ^ does not work. How to do that ? is there a way to include a 'backsapce' in a label to compensate the length of the subscript ?
Thank you !

[Bastian Märkisch]

There is an example given in the help for the enhanced syntax:

a@^b_{cd}

This makes the superscript "b" occupy zero width (in the calculation). See help enhanced.

[Anglès d'Auriac]

Thanks Bastian !