Right click on UDTT Project > Generate UDTT Open API Document. This menu is available for UDTT projects.

After you click the menu, an operation and flow review window will be shown as below. Operation and Flow information and relationships are presented, as well as Context Data. The input/output parameters are displayed with JSON format. Double click the operation and flow name to open the transaction editor. All of the stoppable states and events will be listed.

Before you generate the Markdown file, some of the descriptive information, sample data and deploy information (used for remote online test) can be edited in the window. All of them will be generated into a Markdown file after you click the Export button.

The Reload button helps reparse the EMF model after modifying the original file.