Here are my settings for taking photos during Sunset hours...
1. Under the 'effects' tab, bring up the 'temperature' slider and slide it to about less than halfway towards the right.
2. Go to color cast correction then move it to about a quarter of the way to the right. This will induce a purplish hue over the subject, but it won't be too intrusive.
3. Go to 'Screen Effect 1' and under filter select 'Sunset Emphasis', now the brighter the sun's cast over your subject the more you'll want to turn down it's 'degree application'. I usually like to keep it in between 10% to 20% (sometimes even lower).
4. Always adjust to your liking accordingly, these are the settings that I like to use to get a nice punchy highlight over the subject during sunset hours. Don't be afraid to be a little generous with the glare as well.