SpawnCommandInNewTab

Spawn a new tab into the current window. The argument is a SpawnCommand struct that is discussed in more detail in the SpawnCommand docs.

config.keys = {
  -- CMD-y starts `top` in a new tab
  {
    key = 'y',
    mods = 'CMD',
    action = wezterm.action.SpawnCommandInNewTab {
      args = { 'top' },
    },
  },
}