Multi Select in Table in VBCS

Summary:

While trying to use multi Select options in table

Content (required):

While trying to use multi Select options in table, when I select a row I get the respective key item value, but when I select the header select as shown in screenshot no keys are returned. Is there any way as most of scripting I see it returns All rows selected.

Is this a bug as if confirmed I will use my approach differently.

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