[NTG-context] How to stop \setuppagenumbering forcing chapter to start on right?

Hi, How can I stop \setuppagenumbering[alternative=doublesided] from forcing chapters to start on the right? I don't want any blank pages. Thanks, Elliot -- " By all means break the rules, and break them beautifully, deliberately, and well. That is one of the ends for which they exist. " Robert Bringhurst (1946-)