How do I turn off mouse block selection in IntelliJ?

Solution 1:

"Edit" > "Column Selection Mode"

Solution 2:

Use Alt + Shift + Insert to switch between Column and Insert selection mode.


Copying comment from brent.payne below:

If you are on ubuntu running on a bootcamp mac (macbook pro here) then the key stroke is Alt + Shift + Fn + Enter. Fn + Enter = Ins since no Ins key exists on the macbook pro