Several options are available:
- None means that the reference of the assets coming from the split will have to be entered. The Increment field cannot be accessed then.
- Addition of a numeric increment means that the number will be determined by the number of the asset at the origin of the split to which the value determined by the Increment entered will be added.
- New number means that the reference of each asset stemming from the split will be automatically determined if the automatic numbering is mandatory. If it is optional, the reference can be entered.