ARVE Advanced Responsive Video Embedder
Responsive embedding of video and it also seems to work with Google Maps
Better Search Replace
This is for making global edits to the database. It is only used when an add-on domain is pointed to a part of a multisite so a lot of editing is needed.
Disable Comments
Allows administrators to globally disable comments. For a non-blog site this seems appropriate.
Duplicator
Is used to make backups of a single or multisite setup. It us used to produce the material to distribute to federations and clubs and may be used by clubs to backup.
Enable Media Replace
Allows a media file to be replaced with a file with a different name and all links to the file to be maintained.
If Menu
Allows different menu items to be displayed according to your role. This might be better to Nav Menu Roles as it has more users and supports the current WordPress
Master Slider
Used for showing a set of images, videos etc. It is unfortunately quite complex.
Members’ Signup
This is a home grown plugin to allow the creation of opportunites to which people can sign up. It is not enabled by default.
MultiSite Clone Duplicator
Used in the multisite environment to make it easy to set up a website by copying an existing one. It only copies within a single multisite network.
Optimize Database after Deleting Revisions
This is network activated – but can only be run from the main site.
Simple Calendar
This integrates one or more Google Calendars into the website.
Simple Yearly Archive
This gives a list of posts organised by year and controlled by category.
SportsPress
This plugin is able to deal with many aspects of league management. It is only useful for federation sites.
TablePress
TablePress Extension: DataTables FixedColumns
TablePress Extension: DataTables FixedHeader
TablePress Extension: Responsive Tables
TablePress Extension: Table Auto Update
TablePress Restrict Authors
Not network activated but strongly recommended,
User Role Editor
Not network activated – and not advertised
Wordfence Security
Provides Anti-virus, Firewall and Malware Scan.
WordPress Importer
Not network activated – and not advertised
WP-Members
This provides a mechanism to register users and control acccess to the site.
YOAST SEO
Search Engine Optimization. This is not “network activated” at the moment.