Ah, now i remember the issues with border select. It causes too much conflicts with other functionality, especially when modeling. Border select is also present in more than one editor type. You go crazy in the try to solve those conflicts then and to provide consistency. I fear i cannot do this neither, sorry. It breaks too many other things.
As a sidenote, Lasso Select works with mouse and holding down ctrl. Maybe that’s a way to go for you.
EDIT because of cross posting: the problem is really the consistency in both cases. You start to pull at one end, and end in hundrets of connections that you need to fix then. When you make one thing better, but a dozen worse then it’s no good solution.