delete a feature from a series group

[cikho]

Since in this period I am particularly active, I return to ask for your help (I buy a manual first )
Then:
on one of my pieces I made a series of a feature group. . However I have to do some corrections, I find myself in the situation of having to delete one of these features from the series because it is not necessary. .
Now, if I delete the feature from the group, I get rid of the whole series. .
If I eliminate the series, of course, I also delete the starting feature group. .
from the "change definition" menu of the group I do not find the way to exclude a feature. .
how can I solve my problem

edit

 

[cikho]

solved, sorry I was locked up and I didn't see the button "elimina serie"
Excuse me.

 

[Preparation-H]

Since in this period I am particularly active, I return to ask for your help (I buy a manual first )
Then:
on one of my pieces I made a series of a feature group. . However I have to do some corrections, I find myself in the situation of having to delete one of these features from the series because it is not necessary. .
Now, if I delete the feature from the group, I get rid of the whole series. .
If I eliminate the series, of course, I also delete the starting feature group. .
from the "change definition" menu of the group I do not find the way to exclude a feature. .
how can I solve my problem

edit

Ma type one thing about the genere?

 

[cikho]

Ma type one thing about the genere?

I can't do this.

in a sheet part I made a flange to which I attacked a second one.. I grouped them and made a series. .
At some point, the second flange was no longer needed, and I wanted to eliminate it from the group thinking it would be eliminated even in the series.. in reality it eliminated (or suspended) the whole series.. (Parliament adopted the legislative resolution)