I can't scroll with a mouse wheel inside the sidebar deck of libreoffice impress, unless I move the cursor to the wheelbar.
I had implemented this upstream for 4.3, I can try a backport
libreoffice-4.2.7.2-7.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/libreoffice-4.2.7.2-7.fc20
Package libreoffice-4.2.7.2-7.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing libreoffice-4.2.7.2-7.fc20' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-15205/libreoffice-4.2.7.2-7.fc20 then log in and leave karma (feedback).
libreoffice-4.2.7.2-7.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.