Thanks!
Thanks for their responses.
dzt: I tried your response and until now it has worked, I had problem with the last row, but I believe that it already should solve it.
alfcen: I could not have achieved that your suggestion works, but I will keep on trying, since it is interesting to me to understand the solution.
Would be grateful to you enormously if you could post a small example. (I’m Sorry, but still I complicate some simple things)
Again, thank you very much.