Export region between bookmarks

You may use bookmarks to select only a part of a file that should be exported. So, you can extract a part of a file of your interest into a new file.

To do so, firstly you have to bookmarked at least one line. Then, from the Bookmarks menu, choose Export Region between Bookmarks. In the dialog, you can choose the bookmark that will be the initial line of the text region, and the bookmark that will be the end line of the region. Finally, pressing OK, you will be prompted for the new file where the selected text will be saved.