Editora 0.10.0. Archived, so links from that release keep working. Read the 0.16.0 page →
View: Toggle Copy Line When No Selection
view.toggleCopyLineWhenNoSelection When nothing is selected, Copy and Cut act on the whole current line.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for View: Toggle Copy Line When No Selection, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.