Sometimes it would be nice to have several servers systat data combined together in a graph, for example, when diagnosing a OSP controller issue which affects the performance of the platform.
Actually, sarstats accept several datasets, but complains about duplicated data and also draws some lines in vertical at each data point.
Despite of the 'styling' side, it still can be seen two points on the same 'point-in-time' but there's no way to differenciate where this data came from.