Depending upon how you've configured your account, it won't be "separate from participated" but rather a superset of participated. By default, you are subscribed to a thread when you post, by manually subscribing to threads you like you get them added to "subscribed" without having to add a post. If you dislike email notifications from subscribed threads, change your
Default Thread Subscription Mode to
Through my control panel only (this change doesn't effect existing subscriptions, but you can bulk change them
here). Now when you use the use the
SUBSCRIBED view/tab in Tapatalk you see threads you've participated in
and threads you've "liked" by subscribing (which is EXACTLY what you were asking for but uses a different set of widgets and settings than you'd prefer
)