Sum Current MTD Plus Next 2 Months

[#1]

I am new to qlikview and need to sum the current months forecast plus the next 2 months. Can someone advise how I can do this in Set Analysis.

[Gysbert_Wassenaar]

I'm afraid I don't have enough information to answer your question. Can you post a qlikview document that demonstrates the problem?

[ramoncova06]

check this post from mby