I am building two Rest API rest to download necessary data, for the filed i choose in schedule task, i create a report with file HST_CLOSE and HSTCOLODATE, and i am trying to get the same data in an on demand request using the ElektronTimeseriesExtractionRequest, however i could not find similar filed as this two, so i could not use the rest api to collect data if my schedule rest api is down one day, is there a one by one filed table when we are comparing the on demand request and the schedule request, or actually the data source for them are totally different, so we have different field name, or should i use another on demand api request rather than the elektron time series.