I don't know why you would change this. Since we first signed up for Freshdesk many years ago - all of the following actions would open a ticket into a new tab, and leave the current list in place.
Ctrl+Click
MIddle Mouse Click
Right Click - select open into new tab
They all open the ticket into a new tab - BUT...
Then they also navigate the current list to that ticket also.
How are we supposed to keep a list of tickets in a queue to work through if you navigate our list way.
Of all the breaking changes on this new MINT interface, this is the most _______ painful.