Yup you can do what Jessie mentioned above by creating your smart list in the leads database first. I usually start that way for some of our publications broadcasts, but when I have to do the promotional campaigns that uses some of those smart lists it starts to look horrifyingly long, and if I have to reuse that same smart list again within a campaign (which I do), it would be nice to just clone it (the smart list) as a template and save it perhaps to the global leads database or within a program. So yes I voted like to Elliot's suggestion above.