9e0dc6c5_BAMBE_manual_Run_control_file_options__Description
[Option] initial-kappa [Choices] Comma separated list of positive kappa values. Default is 2.0 [Description] 
If single-kappa is true, a warning is given if more than one value is specified. The first value will be used. If single-kappa is false, a value must be specified for each category in use.
BAMBE manual
Description