I activated a setting that selects things with multiple carets and whitespace and I can't undo it.


My code editor is currently allowing random whitespace selection and what I've search online will not allow me to turn it off.


Secondly, when I click and drag across multiple lines, a caret is created for each line, and these settings are really difficult for me to work with.


Please see this video for an example of what I'm talking about.



Unfortunately, the video you provided isn't available now. Could you please specify what exactly you mean by "random whitespace selection"?

Please, check if the context menu (right-click on the code in Editor) item Column Selection Mode is marked:

If you uncheck this option, the multiple caret feature should be disabled. 

Please, note that you can try to find the feature you need using Search Everywhere - the search window opens on double-Shift.