Hi Jean-Paul,

> Am I missing something obvious here?

No - currently the Blend command is pretty limited and will only work for simple situations where you only have 2 pieces to blend between.

Sometimes it is possible to use Edit/Trim on an edge with "Add trim points", to split edges up so that you can have paired pieces but this is not always possible.

In the future I do want to improve Blend so that it can take a range of edges along either side instead of only one edge, but this probably won't get done until version 3.

- Michael