Adding to the post above, it's not currently supported on the mobile version of the site. If you're on mobile right now, you'll need to request the desktop version for the button to appear.
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Just go to your profile. Should be easy enough.
Click on your name in the upper corner
Adding to the post above, it's not currently supported on the mobile version of the site. If you're on mobile right now, you'll need to request the desktop version for the button to appear.