How Do I Change The Default Tab/Subtab?

Hi,

The default tab is the very first tab, so using our Pro version, you can rearrange the tabs to make your desired tab the first one. If you don’t want the default tab to be the first one, you could alternatively checkout this article: https://codex.buddypress.org/getting-started/guides/change-members-profile-landing-tab/

Hope this helps.
Tarek