表单例子:

var o = $("#entries_startTime").shrDateTimePicker('option');

o.stepping = 5;

$("#entries_startTime").shrDateTimePicker(o);

多分录例子:

$('#entries')[0].p.colModel.map(function(item){

    if(item.name == "startTime"){

        item.editoptions.datepickerjson.stepping  = 5;

    }

});