Enables customization on the corresponding loss plan table. When Customize is enabled for the End-to-End total loss (dB) in a n-party conference, values can be changed by the administrator. When Customize is disabled, the End-to-End total loss (dB) in a n-party conference values are reset to the values that they would have had under the 2 Party Loss Plan. Available only if Digital Loss Plan Modification is enabled for the system.