Hi all. Having moved up to the mu43 format from P&S in recent months I've also in the last week begun shooting RAW, and having received LR3, I'm starting to post process some of my images. A fairly typical natural progression that I'm sure many if not all of you have been through. To help me along my way I have purchased the Scott Kelby LR3 book...quirks aside it seems a solid first choice. Before I get the book though, I have a question I hope someone might be able to answer. Is there a way to 'dilute' an effect ? For example, I really like some of the presets available but have found that although the preset may be really cool I would in some cases like to apply the preset (or any other change/effect) and then dilute it's net effect on the image so as to find a sweet spot or middle ground between it and the initial image. Photoshop has 'opacity' functions or even the 'fade' edit that achieves that....does LR have something similar ? Many thanks.