I'm not 100% sure about this, but I think that the time zone being employed by the alternate gateway differs from the previous source. The former appears to be New York time while the previous source was definitely GMT.
This being the case, a more appropriate caption for the parameter MT4TimezoneGMTplus would be 'Number of hours your MT4 is ahead of New York time', while LocalTimezoneGMTplus would be 'Number of hours your local time is ahead of New York time'. Or in other words, if the symbols are being plotted underneath candles that are 4 hours behind the correct news time, you'll need to add 4 to your existing timezone parameter value(s) (because New York time is currently GMT-4 hours).
This being the case, a more appropriate caption for the parameter MT4TimezoneGMTplus would be 'Number of hours your MT4 is ahead of New York time', while LocalTimezoneGMTplus would be 'Number of hours your local time is ahead of New York time'. Or in other words, if the symbols are being plotted underneath candles that are 4 hours behind the correct news time, you'll need to add 4 to your existing timezone parameter value(s) (because New York time is currently GMT-4 hours).