Add a favourite heart in My Changes > Process Changes tab.
We've had user feedback that when they read a process change and think that they want to add it to their favourites, they can't do this easily - they have to go into the page and then favourite.
AdminKerry Hiki (Admin, Nintex) commented
Thanks for the suggestion. We don't have this on our roadmap right now so we'll open this for voting to gauge interest from other clients.