In this screenshot, Advanced spark2-env section is expanded. There are many parameters like hive_kerberos_keytab, hie_kerberos_principal, spark_daemon_memory, spark_log_dir, spark_pid_dir, spark_thrift_cmd_opts, content. The memory of the spark_daemon_memory is being changed to 4096 MB.
In the content field, the line # SPARK_EXECUTOR_MEMORY is being changed to SPARK_EXECUTOR_MEMORY="2G".