I'm wondering if there is any way in chart.js that I can group chart legends as I want. eg: First set of Data 1 to Data 4 as one group & second set of Data 1 to Data 4 as one group.

DATA 1 DATA 2 DATA 3 DATA 4

Group 1

DATA 1 DATA 2 DATA 3 DATA 4

Group 2

Is this achievable?