Currently in Stripo's emails all UTM parameters are set for the whole email. However, UTM content is a unique parameter that helps you identify where exactly someone clicked: (utm_content=hero or utm_content=article-title or utm_content=cta-button).
It will be really useful if for all blocks that support links you add another field under the URL field specifically for UTM content parameter. It should probably only appear if you activate UTMs for your whole email (otherwise without other UTM parameters it does not make sense to have it in your emails).