Basler Dart Hardware Triggering?

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Current State: I have successfully set up four USB Basler Darts to stream on the .../image_raw topic and software-trigger on the .../trigger topic. ../trigger topic.

Problem: I'd like to switch over to hardware triggering to get the cameras time synced. So far, I've been unable to find documentation on the pylon_camera package to run with hardware-trigger.

The hints I can find in the package are:

• pylon_camera.h sets the trigger mode to 0 (software trigger).
• pylon_camera_node.ccp is set to throw an error if the camera is not registered to software-trigger mode.

My questions are:

1. Does pylon_camera support hardware-trigger mode?
2. If not, can it be simply altered to do so? Or will I need to adapt my own node?

Thanks very much for your help!