External Debugger
By default, when you debug a program, the IDE switches to the Debug perspective. If you prefer to use the standard isCOBOL Debugger, started outside of the IDE, you can configure it as follows:
1. click on Window in the IDE menu bar
2. choose Preferences
3. expand the isCOBOL tree
4. choose Run/Debug
5. switch from “Use internal Debugger” to “Use external isCOBOL Debugger”
6. click OK
For more information about isCOBOL Debugger, please consult Debugger.