Being able to copy from bufferA or bufferB to bufferC without using buf.Op

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Hello fellow patchers! I'm trying to find a way to copy either "bufferA" or "bufferB" to "bufferC" without using buf.Op and without using any externals or packages.

Any solution would be appreciated, however being able to do it without having to enable DSP would be ideal. Thanks in advance.

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send duplicate A message to buffer~ B

and so on ....

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Thank you very much!