If you want to share a render profile you can do so at the KDE Store page. You need to create a login, then you can upload your custom rendering profile file, which is on Linux stored in .local/share/kdenlive/export/customprofiles.xml and on Windows stored in %LocalAppData%kdenliveexportcustomprofiles.xml. The file contains all your custom rendering profiles so you should copy it and remove the ones you don’t want to export.
Profiler som skickas in där visas i Ladda ner nya återgivningsprofiler.