Thanks. This really helps. Just wondering, is there a way to pass the 'area' argument (to subset the data by bounding box) for those datasets that are not on a regular lon lat grid. Example UERRA dataset which is on a Lambert Conformal Conic grid. For such datasets, the 'Geographical area' option does not appear when selecting/filtering the variable. I see there is a related question here (though this question in fact is for another dataset that is already on a regular lon lat grid, yet not available to subset the bounding box). I am not sure why it would be difficult to transform the user defined regular lon lat coordinates to the dataset's native projection on the back-end, i.e. the Show API request should be able to do this in the background and display the 'area' coordinates for subsetting.