Mouse Hover over XY chart to obtain the X axis value

[Transistor]

Have a look at what I wrote in the link below. In my case the X-axis value was a date. It looks like you are using a category so you may need to experiment.

Perspective XY Chart xAxes tooltip text {dateX}

An example tooltip with date, time and day of week. [XY Chart tooltip with time] Machine: [bold]{name}[/] Count: [bold]{valueY}[/] Date: [bold]{dateX.formatDate('yyyy-MMM-dd')}[/] Time: [bold]{dateX.formatDate('HH:mm EEE')}[/]

See the link to the AM Charts documentation for further ideas.