Conditional Formatting line chart line colours based on a column

[QMSAutomation]

Hello,

I am attempting to display a line chart that has groups of lines with the same colour. This is being done for patients in a clinical trial therefore I cant devulge the types of data being displayed but I can explain the relationships: 

Table:

Column 1 is in the legend (patient), column 2 is the patients data (Y axis), column 3 is the testing days (X axis), column 4 is the grouping each subject belongs to. 

I want to display each subjects data, but want the line colours to be displayed by grouping in column 4, is this possible?

Current line chart: 

[amitchandak · Accepted solution]

@QMSAutomation , You can choose a color for the line. but conditional formatting is not supported. We can format marker, but that only when we have one measure and no legend 

[QMSAutomation]

Thanks for the response, not having the legend in the graph won't show my data correctly, so I'll have to stick with the current colours and use a slicer to display only the groups when selected. Thanks!