Best approach to creating a new project that uses topics from an existing project

[pgcalc]

I use RoboHelp HTML 8 to maintain a WebHelp project with about 650 topics.  I need to create a new WebHelp project (at least I think I do) that will include a subset of the topics from the existing WebHelp project (I'm not sure how many, but I'll guess 50 - 100) as well as perhaps 40-50 new topics.  I would like to maintain in one place the topics that the two projects have in common.  That way, if I need to make a change to any of these topics, I only need to make it once.  I also would like to use the same skins and other formatting files from the existing project. What is the best approach to doing this?  Thanks for your help!

Bill

[RoboColum_n_]

Hi Bill. If I understand you correctly you seem to require two different outputs using (at least in part) the same set of source files. This is where using Conditional Build Tags will save you a whole load of hassle. You don't need to create a new project. All your source is in the same project but when you generate your content you define the content that is generated. Click here for further details.