If you want to link your tab from another page using the tab ID, then kindly follow the below steps.
Open the file in this path /wp-content/plugins/designthemes-core-features/shortcodes/shortcodes.php using some editor like DreamWeaver and scroll to line no: 549 approximately.
Under the dt_sc_tabs function you can add the code like the image.,
If you cannot find the code in the line number specified, just search for function dt_sc_tabs in that file and you can find the relevant code.
Now you can link the tabs as per your need using the tab ID.