The method to exclude patch in a scan is the same for Agent and Agentless scans. The 'Applies to Agents' message is information you it also applies to agents.
Create a Patch Group and add the patch to it.
Create a Scan Template and choose this Patch Group as an Exception. The patch will be ignored.
This document is current for 9.2 and will work with agent and non-agent scans: How To: Include or Exclude Specific Patches in Scan Results
Tkx, would be good for the document to mention that. Even better for the GUI to show this.
I'll send that feedback to R&D, thanks!