How can i show the bar chart categoryAxis label in multiple lines

[Ganesh]

Hello,

i have requirement like show the categoryAxis label in two lines.
presently i am showing on y axis of the chart like below.
Style: 1254ABGF, Color: 0018
I am expecting like.
Style:1254ABGF
Color: 0018 

can any one explain me how can i achieve this task, or is it possible with current version.
I hope i will get replay.