A system (1,21) for configuring a bridge (13,21) in a wireless lighting system (31,33) which has been commissioned in a bridgeless mode, said wireless lighting system (31,33) comprising a plurality of lighting devices, said system (1,21) comprising: at least one input interface (3,23); at least one configuration interface; and at least one processor (5,25) configured to: - use said at least one input interface (3,23) to determine that a bridge (13,21) has been added to said wireless lighting system (31,33), - use said at least one input interface (3,23) to obtain information relating to said plurality of lighting devices, - analyze said information, - determine one or more groups of lighting devices based on said analysis, at least one of said one or more groups comprising multiple of said plurality of lighting devices, and, characterised in that upon determining that said bridge (13,21) has been added to said wireless lighting system, the at least one processor is configured to - migrate said wireless lighting system from the bridgeless mode to a bridge mode by configuring, using said at least one configuration interface, said bridge (13,21) with said determined one or more groups (31,33), such that lighting devices of the plurality of lighting devices that were controlled simultaneously in said bridgeless mode continue to be controlled simultaneously as a group of said one or more groups in said bridge mode. at least one input interface (3,23); at least one configuration interface; and at least one processor (5,25) configured to: - use said at least one input interface (3,23) to determine that a bridge (13,21) has been added to said wireless lighting system (31,33), - use said at least one input interface (3,23) to obtain information relating to said plurality of lighting devices, - analyze said information, - determine one or more groups of lighting devices based on said analysis, at least one of said one or more groups comprising multiple of said plurality of lighting devices, and, characterised in that upon determining that said bridge (13,21) has been added to said wireless lighting system, the at least one processor is configured to - migrate said wireless lighting system from the bridgeless mode to a bridge mode by configuring, using said at least one configuration interface, said bridge (13,21) with said determined one or more groups (31,33), such that lighting devices of the plurality of lighting devices that were controlled simultaneously in said bridgeless mode continue to be controlled simultaneously as a group of said one or more groups in said bridge mode. - use said at least one input interface (3,23) to determine that a bridge (13,21) has been added to said wireless lighting system (31,33), - use said at least one input interface (3,23) to obtain information relating to said plurality of lighting devices, - analyze said information, - determine one or more groups of lighting devices based on said analysis, at least one of said one or more groups comprising multiple of said plurality of lighting devices, and, characterised in that upon determining that said bridge (13,21) has been added to said wireless lighting system, the at least one processor is configured to - migrate said wireless lighting system from the bridgeless mode to a bridge mode by configuring, using said at least one configuration interface, said bridge (13,21) with said determined one or more groups (31,33), such that lighting devices of the plurality of lighting devices that were controlled simultaneously in said bridgeless mode continue to be controlled simultaneously as a group of said one or more groups in said bridge mode.