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Now, If / Then statements in Word are going to be just as complex, but Drawloop now has the Component Library I'm going to see if this makes it easier. But what's the bet you can't have merge fields in components - ooh yay you can!. And what's the bet that the word formatting is going to interfere or be different to the HTML formatting - yep it is. And what about images in Components - nope, of course not. Here's the help docs for component library.
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Component Groups only work with Enterprise Edition. I wonder why that limitation?
Ooh it's Lightning. I like that apps are trying to look like Lightning now.
Install
Follow the install steps http://help.nintex.com/en-us/docgen/docservices/Services/setup/componentLibrarySetup.htm