FAST Schema editor manages is a GUI tool to manage FAST schemas (also called "FAST Template").
QWFIX Eneterprise also provides tools to import or export FAST schema from or into an XML file, for better interoperability with other FAST enabled systems.
Figure 1: FAST Schema Editor in QWFIX Enterprise Manager
Figure 2: FIX Integration - Adding New Field from FIX Schema
Figure 3: Interoperability - Importing a FAST Schema from XML File