How to make a copy line hotkey in a text editor in Mac OS X?

Question

macOS

How to make copy line hotkey in Sublime Text 2 on Mac OS X?
Or maybe it already exists?
Or in another such editor, preferably dark. It doesn’t matter to me until I finally choose the software for myself.
I'm used to Ctrl+D in Geany and now I'm suffering.

Answer 1

If I understand you correctly, then you need not to copy, but to duplicate the line. This is a combination of Ctrl + Shift + D. If it doesn't work - look for the "duplicate_line" parameter in the Key Bunding - Default Preferences menu

Answer 2

Is it the line?
Sublime by Ctrl \ CMD + C copies the entire line on which the cursor is, if no text is selected.