Duplicating tags
The process for creating an accurate and PDF/UA proficient structure for example a list involves <L> -> <Li> -> <Lbl>, <LBody>. This is for ONE list item and a list rarely consist of just one list item so the three tags have to be created for each one. To get these items you need to right click, choose List item, click OK, right click choose Label, click OK, right click choose List item body, click OK, drag and drop List item body into <Li> and then drag and drop <LBody> into <Li>. This is just for the structure, then you also have to fill all tags with the correct data. Creating a single list item can take well over a minute. The time it takes in its inefficiency is one issue I have with this, but primarily it bugs me how incredibly tedious this is, and how stupid the Acrobat app seems to do what it's designed to. I see you did have a ticket for copy + paste of tags back in 2020, and that you "had your eyes on it" or something like that. Apparently absolutely nothing has happened in this area and truth be told I'm quite confident nothing will happen after me pointing it out yet again. But hey, "hope", am I right?