3GL call-in/out, like all other types of (call-in/out) functionality that we support in V9, will/is also supported in V10. However, it is clear that with this current version of the IDE it is not possible to edit any signatures. That is a limitation of the 10.1.01 version. Obviously, the signature editor will be there eventually. The lag of several editors, including the signature editor and various library editors, is the reason for us to call this release the Early Adapter. The tool is just not finished. Gerton