Try to restart your VisualVM. After that the SOAP Webservices and the External Databases should be refreshed. The VisualVM does only show Webservices and External Databases in the Chartstree if they ran at least one time.
Before:
![alt text][1]
After:After VisualVM restart:
![alt text][2]
[1]: https://answers.axonivy.com/upfiles/Screenshot_from_2018-11-05_12-25-02.png
[2]: https://answers.axonivy.com/upfiles/Screenshot_from_2018-11-05_12-26-59.png