yes…  please see:  https://simple-press.com/documentation/codex/plugins/our-plugins/available-plugins/membership-subscribe/

Thank you. Will this subscribe users to the whole forum or only to topics/threads they’ve previously replied to?

I own up to having never used thus plugin but – seems to me that if you have the option

‘Allow members to subscribe to forums in addition to topics’

turned on in the subscriptions admin management panel then that should be enough.  But I am sure @mr-papa will confirm one way or the other later when he is online.

the members subscribe plugin has nothing to do with what users can subscribe too… that is just to allow you to auto subscribe…

as andy shows, you can allow users to subscribe to a forum (every new topic) or a topic (just updates to specific topic)…

Okay so under “Forum > Components > Subscriptions” I have the following:

– “Auto subscribe members to all topics they post in” option checked

This will auto subscribe all members to the topics they post in from this day onwards. 

There is another option (as mentioned above) called “Allow members to subscribe to forums in addition to topics”. I assume this provides members with the ability to choose the forums/topics they want to subscribe to?

But how do I auto subscribe all members to they topics they’ve already posted in (before the Subscriptions plugin was installed)?

Thanks for your help so far!

Please see the membership subscribe plugin…  it allows you to auto subscribe members within a user group…  That pluigin’s faq page has the details:  https://simple-press.com/documentation/codex/plugins/our-plugins/available-plugins/membership-subscribe/