I have an install of OJS3.4 and in the admin section it says the following:
PKP Preservation Network (PN)
The PKP Preservation Network (PN) provides free preservation services for any OJS journal that >meets >a few basic criteria. To archive your journal in the PN, ask your administrator to install the >PKP|PN >Plugin from the Plugin Gallery.
But in the gallery I see no PKP. Question is, how do I add it/install it? I searched the documentation but couldn’t find anything besides this link: https://docs.pkp.sfu.ca/pkp-pn/en/