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Warning don't press alt and up to scroll the document. The video text suggests you do this but...

this actually changes the location of the current line of code.

1 Answer

It seems like it possibly could be an old video, but now when you use alt + up/down to scroll it moves whatever object your curser is on; Cntl + down/up moves the screen down or up without messing around with your code. Hope this helps.