Configure left command,option keys and input source selection
- open Karabiner-Elements, if not install it.
- click
Simple modifications
tap. - map following properties
left_command
toleft_option
left_option
toleft_command
right_option
tof19
- open Keyboard in System Preference
- click Shortcuts tap, move to Input Source and map following property
Select the previous input source
toF19
- you can now use right command key as changing input sources.