Listen/Subscribe to selection changed events

Hello, I have been searching through the documentation on how to listen to selection events, I tried event stream and I tried the USD notification system (TfNotice) but with not luck. Basically I want to limit the user selection to a certain depth in the stage tree so I need to listen if the selection event and change the selection target accordingly.

Thank you.

For selection changes you would want to Stage Events for selection

import omni.usd

def on_stage_event(e:
	if e.type == int(omni.usd.StageEventType.SELECTION_CHANGED):
		print("selection changed")

stage_event_sub = (
	.create_subscription_to_pop(on_stage_event, name="My Subscription Name")

Here’s a sample extension that utilizes the selection changed event: GitHub - NVIDIA-Omniverse/kit-extension-sample-ui-scene: Sample Repository to create Kit Extension using the ui.scene API

Great thank you.

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