how to promote parms from materialsX

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i am starting to work in a materialX so can be use in the GPU but the materialsX node are well completely different,

how can i promote a channel? usually, you have the little know on the left side, you can right click it,
or you can make a parameter node and connect that one, and magically that Parmeter will be created in the top level under te UI of that node.

i am missing something.

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promote_parm.png (61.4 KB)

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Hello!

You can manually add it as a relative reference:

https://www.dropbox.com/scl/fi/4hhe15dhdntraelz600tn/houdini_mn0VtRmSuL.mp4?rlkey=633imgargicpuazhsbfl2eulh&dl=0 [www.dropbox.com]
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super thanks, i was manually going one level up, click the gear > edit parameter interface, add a string channel save it

now "copy channel", and "paste as relative channel" but that to much work have so many channels that i need to promote, is a reason why materialX doesnt have those knobs or right click promote channels?
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you can drag parameters directly from inner nodes to edit parameter interface.
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i found out if i go to edit parameter interface,
i can look by node, expand and get the parameter i need not the best way but is something
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