From Oil Samples table, it will be Running KM's of a vehicle. From the Service History | Oil Data table, it will be Oil Consumed.
The x-axis will be date the record is recorded (i.e. how many KM on the odometer on this date, then how much oil was used on another date etc) Unfortunately for the moment, like I said, the records of those do not fall on the same dates.
Basically what I was wondering is if it is possible to have a different y-axis scale on the left side for Running KM's, and another y-axis scale on the right side for Oil Consumed. This is easily achievable in Excel or iWork Numbers so wondering if the same could be done here.
FileMaker only uses one scale for all specified Y-series.
The fact that the records do not fall on the same date could also be a problem as your days where the data was not recorded will typically chart as a zero value on that date.