Sublime Text has this functionality where you can select text and start editing each line with a (multiple) cursor:
To do this on Linux (tested on Ubuntu 16.04), do as follows:
In your editor, press Alt + Windows Key and use your mouse to place the cursor on the lines you want to have multiple cursors on.
You may also want to allow placement of caret after the end of line or inside tabs. In that case you need to change your settings:
Go to Editor -> Generaral -> Virtual Space:
And make sure the above mentioned two settings are enabled.