in the version 11 i can copy just one comment text from one sheet to the other, in version 10 it was possible to add several commment lines under the help of the "ctrl"-button. How can i highlight more than one text ?

The version is ADOBE ACROBAT XI PRO 11.0.17

The cursor, without mouse click, is already highlighting the comment text. The first mouse click changes into the edit mode. If I click on more than one text parts just the last one would be copied. The major difference to the former version is the text highlighting without mouse click.