I would like to perform a simple operation but I don't manage without using a huge number of nodes ...
Below an example of the input table I have :
I would like to obtain the following output table
I would like to concatenate all columns "label#" to one column "label" and create a new line keeping the right ID.
I think there is something to do with the Column rename regex, concatenate and loop nodes but I can't find what ...
If there is an expression to write in regex could you please write it (as I am a beginner ...).
Thank you in advance for you help !