For the bidding option in your screenshot, you may set the
biddingStrategyType as MANUAL_CPC, and then in your
ManualCpcBiddingScheme object, you can set the
enhancedCpcEnabled field to true. You can check this Java
example on how to add campaigns which is also available to other languages that AdWords API supports. There is a campaign in the example with MANUAL_CPC and what you need to add in the code is the enhancedCpcEnabled field which is being set to true.
Let me know if you have further clarifications.