What does "within tools" mean in this context?

In T281017#7043970, @iamjessklein wrote:

What does "within tools" mean in this context?

E.g. a setting people can adjust when they have a Reply or New Discussion Tool open.

Question(s) this spike should answer

• Where is the preference for automatically subscribing to topics surfaced?

To start, people will have two options for managing automatic topic subscriptions:

1. They will be able to opt-out of being automatically subscribed to conversations entirely by adjusting a to-be created preference in Special:Preferences#mw-prefsection-editing
2. They will be able to unsubscribe to conversations they have automatically been subscribed to by clicking the [ unsubscribe ] affordance that will accompany all talk page conversations

If the two options above prove to be insufficient, we will explore offering people more granular control over the conversations they are and are not automatically subscribed to.

Where "granular control" in this context could mean: exposing a setting within the Reply and New Discussion Tools themselves that allows people to explicitly decide whether they would like to be notified when new comments are posted in the particular conversation they are starting or commenting in without impacting the state of the setting within Special:Preferences#mw-prefsection-editing.