I've come across an issue as follows:
How can this be achieved?
I've tried by using action filters; on clicking Tab_1, Tab_2 and Tab_3 are coming but Tab_1 itself isn't collapsing.
I'm attaching the mock Tableau workbook.
I did something like this when I first discovered Set Actions and was playing around with them. Is Dashboard 1 in the attached workbook what you're looking for?
I would be happy to answer any questions about how I made the workbook if you are interested.
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