I can confirm that this problem is still not resolved in TY2023. My troubles are confined, as far as I know, to the Medical Deductions entries. Sometimes I can't click in the box, and have to go to Forms to enter the requested amount. Add Supporting Details is available there, too. Sometimes right clicking for Supporting Details does not work, but Edit > Add Supporting Details does work. This can't be hard to fix, as it works in other sections of the program. TurboTax needs to give this some priority.
I also hate it when I enter an amount too quickly and the transferred Add Supporting Detail first line from the previous year's return is erased.
