Hi, all. I have 2 questions:
1.I am little confused with the working processure: group + merge + ungroup(image below) : why I need firstly unify the 2 set of lines then split again, is there some direct way to do this? Maybe because I am not very clear with data screen here, need some experenced one tell me the principle.
2. When I read the tutorial, still , I need someone help me to explain the difference between “ungroup” and " unflatten", though I seek explaination on line, I cannot understand thorougly, too abstract, both of the questions are quite need logic thoughts.
Hope some one can help.
Thanks in advance!