Is there any way in Atom to replicate the feature in Sublime Text where you can hold down the alt key and move the mouse up or down to select and create a cursor at the end of multiple line so you can edit multiple lines simultaneously?
If I understand your question correctly, you want to select multiple lines and create a cursor at the end of each line. There are a couple ways you can achieve this:
Selection|Split Into Lines
command (Cmd+Shift+L on OS X or press Cmd/Ctrl+Shift+P and type Split Into Lines
) to split the multiline selection into a selection for each line.Selection|Add Selection Below
to add as many lines with cursors as you want