Hello Sophie.

Thank You for Your purchase.

Is it possible to have tool tips on the first row of a table?

I am sorry to disappoint You, but unfortunately, this option is not available at this time. As we carefully follow customers requirements and try to implement most of them if they appear in requests from time to time, so we will add to our idea list and look into some possible solutions on plugin side in the future.

As for displaying tooltips, You can set them in the Formatting and preview step when creating a HighChart. Please take a look at Attachment 1. There You can see the actual tooltip "L shape 4mm. Units made: 6000" enabled from that menu, where "L shape 4mm" is a row, "Units made" a column, and "6000" the data in the cell.

That is default behavior of charts engine, but if you need some custom solution you can check in our documentation about wpDataCharts callbacks. 

• Every chart exposes several options that customize its look and feel. Charts usually support custom options appropriate to that visualization. wpdatachart callbacks  allows adding options that are available in Google Charts API, Highcharts API and Chart.js API. 

• All necessary resource are available in charts engines API (depends on which one you use). Every engine has different approach of charts settings. In wpdatachart callbacks you have to adopt those settings to wpdatachart object(you can take a look an example for each engine in our documentation and also in Support help center). Huge number of examples for any area of programming you can find on stackoverflow.com(typing your problem in google and of the end add site:stackoverflow.com and google will search only on that website) and also a lot of resource of examples of chart, chart settings and customization you can find on jsffidle. net(typing in google for example line chart highcharts jsffidle)
• Please note that using hooks or wpdatatable and wpdatachart callbacks requires certain level of programming skills and included support refers only to advises.

I hope this information will help You with Your question.

Best regards.