Thank you a lot for your answers.
Finally, it was a better solution to change the structure of the model, however I might use this again.
greetings,
Cathy
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LOOKUP
Hi, I have a question, please if anybody has any answer, would be great, thank you! I try to explain it: In my model I have subscripts (S1, S2, S3). I want to implement a new variable (NW) in the model, where all the subscripts would have a lookup function. That means that I have all the values for ...