This puts command & option in the correct places on both the left and right side of the space bar.
These are the kernel MIB variables, but its pretty obvious what GUI tick boxes they correspond to:
keyremap4macbook.general.dont_remap_internal: 1
keyremap4macbook.remap.commandL2optionL: 1
keyremap4macbook.remap.optionL2commandL: 1
keyremap4macbook.remap.optionR2commandL: 1
keyremap4macbook.remap.pc_application2optionL: 1
keyremap4macbook.initialized: 1