TT Deluxe here - - -
My experience with supporting details is that it seems to work for some entries, but not for others. For example, I found that it worked properly (from the "Edit" menu - not with a right-click) when entering property tax on a primary home, but not for property tax on a second home, for prescription drugs, doctor visits, and additional insurance. (And there may be others - that's just what I've noticed so far).
I started my tax return several weeks in early February. Subsequently,TT has had one or more updates. And I had a major computer problem that forced me to reinstall TT and go back to the beginning of the entry process. My sense is that it was possible to add supporting details three weeks ago in areas where that is not allowed today. So it isn't clear to me whether the supporting detail problem has been present from my initial use of the program in early February, or if it crept in during an update.
And let me add - when I first start entries in early February, I was working off a 2023 return and I found that supporting details were carried over from last year. After my computer problem, I no longer had access to the 2023 return, so there were no carryover fields for comparison.
