You should create Testing instance for Testing Tool - "HP Unified Functional Testing (UFT)". Also, define Environments and Endpoint mapping to indicate where HP / Micro Focus UFT is installed. See below.
First create Testing instance under Topology - Integrations - Testing.
Map Environments where you will be running HP / Micro Focus UFT tests. You will need to Save first before you can map Endpoints to testing instance environments.
Make sure to map Endpoint for each Environment that is mapped to testing instance. Make sure to Save.
The plugin has been tested with both HP UFT and Micro Focus UFT One. Unix is not supported.