JabRef 5.x Custom Export Filter

Hi

I’m new to JabRef 5.x. I have a personal Export Filter that converts .bib files into .html using some .layout files. According to JabRef 5.x doc, I should add the filter as below
Options → Manage custom exports. However, I do not have such a tab under Options. All I have under Options are: Preferences, Manage content selectors, and Customize entry types. Please advise.

Thanks,

The custom export filter can be added as below
Options → Preferences → Custom export formats. Click on Add and provide the Export format name, the path to the main .layout file, and the File extension.