Arduino-esp32 project is based on ESP-IDF. While ESP-IDF supports configuration of various compile-time options (known as "Kconfig options" or "sdkconfig options") via a "menuconfig" tool, this feature is not available in Arduino IDE.
To use the arduino-esp32 core with a modified sdkconfig option, you need to use ESP-IDF to compile Arduino libraries. Please see :doc:`esp-idf_component` and :doc:`lib_builder` for the two solutions available.
Note that modifying sdkconfig or sdkconfig.h files found in the arduino-esp32 project tree does not result in changes to these options. This is because ESP-IDF libraries are included into the arduino-esp32 project tree as pre-built libraries.