How do I set how often the camera publish images to ROS topic with GUI

I use the action graph below, but it has no effect on camera publication frequency.

Hi @15974625082 - This document will provide the info you are looking for: 12. ROS Bridge in Standalone Workflow — Omniverse Robotics documentation

Can only be controlled by script, and there is no way to set the action graph?

There is another tutorial of adding cameras using ROS2: 3. ROS2 Cameras — isaacsim latest documentation

When the frequency of images is high, I think it is possible to write ros programs and use ros publisher to publish image topics at a lower frequency