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

SplitHorizontal

Since: 20201031-154415-9614e117

Splits the current pane in half horizontally such that the current pane becomes the left half and the new right half spawns a new command.

SplitHorizontal requires a SpawnCommand parameter to specify what should be spawned into the new split.

local wezterm = require 'wezterm';

return {
  keys = {
    {key="%", mods="CLTR|SHIFT|ALT", action=wezterm.action{SplitHorizontal={
      args={"top"}
    }}},
  }
}