Xrni-Merger is an "instrument asset manager", designed to make it easy to copy assets from one instrument into another. That would include modulation sets, effect chains, phrases and samples.
To make it more awesome, it does a lot of stuff behind the scenes. If you for example select a single sample that makes use of an effect chain that in turn send audio to another chain, this is detected by the tool and you can then choose to reconstruct the entire 'network' in the target instrument.