Hello,
I decided to answer you here because on our https://www.8theme.com/taskboard/ there are some limits which not allow me to push full code for you.
It is not available by default but you may reach such results with few next steps :)
1/ Add custom id for your tabs (you want to open and scroll) -> https://prnt.sc/381z7N1JEien
2/ Open xstore-child/functions.php and add next code snippet we described for you here -> https://dropmefiles.com/htjQ0
Example of implemented code: https://gyazo.com/036caa6c6a0eabbe5453e7f1222995b5
3/ Now if you need to create link to specific tab please follow next url structure -> http://yourwebsite/about-us/?et-active-tab=custom-tab-id
et-active-tab = means for code that you want to scroll to specific tab
custom-tab-id = specific id of tab to open and scroll to
Result: https://gyazo.com/88a51abf8d3870934fbb2ae5918d568e
P.S. you should know that sometimes it is better to help one customer rather than create extra option which will be useless for all others. Also if your request will become popular among others we will move it to ‘planned’ or ‘in progress’ state but for now I decided to help you without waiting much time.
Regards, Jack Richardson