For the wiki, to enable attachments:
- Wiki attachments must first be enabled at tiki-admin.php?page=wiki&cookietab=2&highlight=feature_wiki_attachments .
- For user groups to be able to view and attach files, the permissions wiki_view_attachments, and wiki_attach_files must be assigned to at least one of the Groups the user is a member of.
These two permissions allow the viewing and uploading of attachments. By default, deleting an attached file is only possible for the one who uploaded the file or for site administrators. A global ability to delete attachments can be granted to a group if the permission tiki_p_wiki_admin_attachments is assigned to the group.