wezterm/docs/config/lua/keyassignment/SpawnCommandInNewTab.md

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.

local wezterm = require 'wezterm'

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