Sometimes I try to delete one Operation but when I have deleted the Operation that i want to delete, the other Operations have been deleted too.
Is the same conduct if I try to suppress
is there a way to modify this conduct???
I know that I make a big mistake when i created i chamfer or Round in the middle of my drawing.
When you delete you should get the option to "delete child features" this is checked as default, if you uncheck it it will try to leave child features (it will remember this setting for next time you delete something) although if they can be preserved there is a high possibility you will have have errors on them.
With the chamfer you have applied if you delete the feature that provides the edge to the chamfer then it will have to be deleted if the edge disappears.
You cannot suppress a parent without its child feature from Suppressed because without the parent the child cannot exist so it is suppressed automatically