It would be great if there was a feature to save/export only the selected entries to a new bibtex file. This is often used to create a smaller bibtex file for a specific paper from a big one where everything is kept together. This could be an entry in the "File" menu (e.g. "Save selected" or "Export selected") and/or an entry in the right-click meny for the selected entries.
As a stop-gap solution until implemented, you can copy selected entries into the clipboard and paste them into a new BibTeX file. Data in clipboard is BibTeX text, so you can even paste into a regular text editor and save that.
Please check the lastest commit from my private clone of KBibTeX's Git repository if it fixes your problem: https://commits.kde.org/clones/kbibtex/thomasfischer/kbibtex/65f296420278e12e178f67f97eada6718c1e655f
Have you been able to check branch 'bugs/kde400672' and can confirm if the bug has been fixed?
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!
Git commit 7fc60258e211b30d198d4c28b14d8f8a1276768d by Thomas Fischer. Committed on 10/02/2020 at 20:38. Pushed by thomasfischer into branch 'master'. Save only selected elements in a new bibliography file In addition to 'Save', 'Save As', and 'Save Copy As', the new 'Save Selection' allows to save selected rows in the list of bibliography element into a new file. FIXED-IN: 0.11 M +1 -0 ChangeLog M +5 -0 src/gui/file/basicfileview.cpp M +5 -0 src/gui/file/basicfileview.h M +1 -0 src/parts/kbibtexpartui.rc M +51 -7 src/parts/part.cpp M +2 -1 src/parts/part.h https://commits.kde.org/kbibtex/7fc60258e211b30d198d4c28b14d8f8a1276768d