There's currently no setting to scope the Feed tab to a single experiment. The Feed is a project-level event stream — it surfaces every event and Page activation that fires on that URL across your entire project, regardless of which experiment you're QAing. By design, it even shows events that aren't attached to any running experiment, because the Feed references the saved project instance rather than the published CDN snippet. It'd be useful to scope the Preview Tool Feed to current experiment only.