Scatter Chart options

Scatter Chart options

Hello, I'm trying to use the Scatter Chart in Zoho Sheet and am having some problems. I don't understand how to get multiple sets of X-Y values on the same chart.
For example, with two data sets, each has their own set of X and Y values. Using ; to chart both sets at once does not work, however if I chart them separately then they display ok.
Is there a guide for the Scatter Charts that provides more details on the formatting? How can I display data with multiple X and Y values?
Thanks