This property can be used to manage up to five saddle jumper slots at saddle jumper connections. The "Automatic" setting is the default setting. In this case only two saddle jumper slots (for the internal and external sides of the terminal connection point) are managed and the saddle jumpers are generated depending on the "internal / external" setting of the respective terminal connection point. Alternatively you can assign a specific saddle jumper slot to the connection by using the setting "Saddle jumper slot 1" to "Saddle jumper slot 5".

Reference

ConnectionPropertyList Class
ConnectionPropertyList Members