Select upward when cursor is at the bottom of the selected block

Question

Sometimes I select a block of text downward and notice that I want to select one extra line at the beginning (and vice-versa). Is there a way to do it without losing my current selection in Sublime Text?

Thanks.

Answer 1

Found this plugin:

https://github.com/philippotto/Sublime-MultiEditUtils/#normalize-and-toggle-region-ends

Which also includes some other nice features.