@Michael-Huhn Hi Michael, thank you for your answer.
I have tried every version from 1.14 until the 28 version of Open Source I-Doit. None of them have this feature that I need. Actually, post 18 version, the option that I've shown in the first comment it isn't available anymore. I won't try recent versions because I'm acknowledge that many features have been deleted since the 29 version.
I don't know what else to do, I think I'm going to ask on the Development forum to start on how can I access to the forum module.
Or if the Pro Version has this feature. I'll be glad if you could give me a hint.