The Each attribute in the Data Attribute Table has a button in column "Values" which opens this modal window. It contains a list of all distinct values of the corresponding attribute.
Furthermore you can configure the local multi value separator. This character or string splits a value into multiple values. The input field is only enabled if the multi values toggle button from the data attributes table is enabled for this attribute. Please look at the example below to understand how the separator works.
Example
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- Attribute: color
- Value: "black,blue"
- Local separator: ","
- The value will be converted into the two values "black" and "blue"
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