Reader DC 2019 changes in comment/markup facilities

Sometime earlier this year, when updates-slash-changes were made in Reader DC, I noted one that isn't configured to work as well as it should. (Unless I'm not understanding something.) I specifically refer to the "insert" tab. A number of issues come up as a result of this change: 1) cannot use it without going to the top and clicking on the icon to bring down the cursor and make the change, whereas previously it simply worked by clicking on the spot; 2) now that I cannot do this, if I have made a change, say, right next to where I need to insert something else, there is an "invisible" box around the other change that prevents me from doing anything else in its vicinity; 3) I am not able to tell how many (e.g.) empty line spaces there are between 2 letters because the cursor does not allow me to use it to count. 

This change was unnecessary, and it's very burdensome; as well, it requires FAR more time to do any single action. So, does anyone know anything about this, experienced it, etc.; is it possible for Adobe to correct this mistaken change -- again, assuming it's not something I'm simply missing/not understanding.

Thanks!