Extracting and Concatenating Files

Hello

I am trying to extract 6000 ABR trials into its 3 components: 6000 trials of Ref, Lmon and Rmon correspondingly.

So using process Extract values>concatenate signals I've made the following analysis pipeline.
Capture1

However, when this process is done I get the following result.
Capture2

The Ref channel has been extracted fine but the below two extracted values do not contain any files.

How should I change the analysis pipeline so that after one round of processing the 6000 ABR original files are separated into its components that are each 6000 files?

I hope the question makes sense.

If you select multiple processes in the pipeline editor, the calls are chained. The outputs of the first one are the inputs of the second one. Is this really what you are expecting to do?
Make sure you clearly understand the way this batch editor works before trying again:
https://neuroimage.usc.edu/brainstorm/Tutorials/PipelineEditor

It could be interesting for you to script this step, this tutorial would help you:
https://neuroimage.usc.edu/brainstorm/Tutorials/Scripting

If the comments above do not correspond to your request: please try to describe better your problem.
From your description, I'm not sure I understand what are "ABR", "Lmon", "Rmon" or "Ref".
And I'm not sure the screen captures match exactly your descriptions, or the results you get.