Label Components of Selected Elements - Stair Tread Step Index is Missing

[Takis]

The project file was started in Archicad 21 and now is being continued in Archicad 22.
I have a problem with numbering stairs treads in sections.
The Stair Tread Step Index is missing.
Is there any way to import the above autotext or label tread step index into this file.
I have imported Archicad Classification 22 file (exported from Archicad 22 original Template) but it didn't work.

Thanks.
Takis.

Windows 10x64

[Laszlo Nagy]

Those items you see in the list in your screenshot are Label Favorites.
You can start a brand-new AC22 Project and export those Favorites, then import them into the other Project.
By the way, they are pretty simple, they are Text/Autotext Labels. The Labeling command places an associative label to all Tread of the Stair, and uses the "Step Index" Autotext to display the Step Index of the labeled Tread. So it could actually be done manually, labeling each Tread one by one, but the labeling command does in it a single step.