How to determine which view port is a legend?

[Luffy11]

Hi everyone, If I have 2 view ports from a sheet as shown in the screenshot, how can I know which one is a legend?

[Draxl_Andreas]

@Luffy11 ,

use groupByKey … and Rhythm package!

[Luffy11]

@Draxl_Andreas oh great, I did it. Thanks a lot for your help.