# SpawnCommandInNewWindow Spawn a new tab into a brand new window. The argument is a `SpawnCommand` struct that is discussed in more detail in the [SpawnCommand](../SpawnCommand.md) docs. ```lua local wezterm = require 'wezterm'; return { keys = { -- CMD-y starts `top` in a new window {key="y", mods="CMD", action=wezterm.action{SpawnCommandInNewWindow={ args={"top"} }}}, } } ```