Yes, the Kansas Real Estate Commission requires all salesperson applicants to have earned a high school diploma or its equivalent before applying for the license.
Kansas does not have a state residency requirement for earning a salesperson license. So you can get a Kansas real estate license even if you do not live inside the state.
You can find the Kansas Real Estate Commission Statute Book on the real estate commission website. It also lists and links to the relevant chapters of the Real Estate Transactions Act and the Rules And Regulations of the Kansas Real Estate Commission.