When a part appears more than once in an assembly, the occurrence number is incremented automatically.
When you want to remove certain occurrences, for example the n°2 or 3 and keep the 5 and 6, is it possible to rename config 5 and 6 to 2 and 3 to keep a continuity of occurrences despite the life of an assembly
I just tried it is not possible manually. When you think about it, it makes sense from a computational point of view: in SW, each object has a unique identifier (more or less visible) so that it can be processed by functions.