how do we add this as a custom ending in chromium? do we still use the same qury as the bing one? {bing:baseURL}search?q=%s&{bing:cvid}{bing:msb}{google:assist

how do we add this as a custom ending in chromium? do we still use the same qury as the bing one? {bing:baseURL}search?q=%s&{bing:cvid}{bing:msb}{google:assistedQueryStats}