Despite what old SE questions state, the PDF software Okular can now write annotations directly to the PDF. This makes it very useful in conjunction with Docear for annotating academic literature. However, Docear imports annotations from the comments, rather than importing from highlighted text. In Okular, when you highlight text it can then be clicked to reveal a comments bubble, which is empty by default. Copying the highlighted text into the resulting bubble allows it to be imported into Docear, but this is laborious.
How can I modify the highlight tool to automatically copy the highlighted text into the resulting comment bubble?