Not by hijacking other peoples topics about other things!
Either open a new topic, or follow up on one that is about the thing you want to talk about. There happens to be a recent thread about the Usermin user experience, and this would go well there (but don’t be afraid to open new topics if a brief search doesn’t turn up a conversation that is related or if you’re not sure it is related). I’d rather have multiple topics about something than have a topic get derailed and go off in a dozen directions, especially topics that are asking for help with a specific problem, like this one.
Recent Usermin UI thread: Usermin feedback