Hey @GeorgevdW! You might want to look into a Targeted Bar Chart. You can add a target for each value that you need. To do this, you'll have to build the target into the dataset. You also won't be able to use a Group, but as an alternative, you can use lattice columns.
Product
Year
Size
Target
A
2017
10
12
A
2018
20
15
A
2019
30
34
B
2017
40
45
B
2018
50
48
B
2019
60
55
C
2017
70
80
C
2018
80
75
C
2019
90
89
If you have multiple values that you're aggregating, simply repeat the target value for each row in the data and then set its aggregation to Average. Since Visual Analytics aggregates automatically, this will ensure that the target value is not summed and remains the value you expect.
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