Of an existing macro for controlling one or more first devices, device designation information for designating each electronic device in the first devices in the macro is converted to category designation information for designating a category of the electronic device based on device information of the electronic device, and the converted existing macro is recorded. A macro usable for controlling one or more second devices is selected from recorded existing macros based on device information of a controller and the first and second devices. Category designation information in the selected macro is converted to device designation information for designating the electronic device in the second electronic devices, belonging to the category designated by the category designation information, based on the device information of the controller and the first and second devices.