How to get the overview of flow service using custom action-REST connector in wM.io Integration

In webmethods.io, how to fetch the details of flow services.
Is there any build in REST API, which we can call from postman(client)?

Product Name:

webmethods.io Integration

Unfortunately, there is no API exposed to return the flow service overview info.
Best regards,
Theo

Is there any document/guide how to add Custom Operations for flow service overview info.

@mouli.dhar please refer to Custom Actions - IBM webMethods Integration

Thank you for the link.
but this documentation is for available operation.

For my case the REST connector is https://xxx.webmethods.io [integration itself as REST url] and want to know how to add any new operation in below list.

You can only edit the operations from the Connectors page. Mouse over the connector you want to edit and click the Operations button.

Then, on the Operations page, click New Operation.

Hope this helps,
Theo