Reaper action to toggle docking of MIDI editor which also toggles sync to arrange view

tack_Toggle docked MIDI editor.lua

--[[
 * ReaScript Name: Toggle docked MIDI editor
 * Author: Jason Tackaberry (tack)
 * Licence: Public Domain
 * Extensions: None
 * Version: 1.0
--]]

MIDI_SECTION_ID = 32060

reaper.PreventUIRefresh(1)
local hwnd = reaper.MIDIEditor_GetActive()
if not hwnd then
    -- View: Toggle show MIDI editor windows
    reaper.Main_OnCommandEx(40716, 0, 0)
    hwnd = reaper.MIDIEditor_GetActive()
end

-- Options: Toggle window docking
local docked = reaper.GetToggleCommandStateEx(MIDI_SECTION_ID, 40018)
-- Timebase: Sync to arrange view
local synced = reaper.GetToggleCommandStateEx(MIDI_SECTION_ID, 40461)
-- Contents: Show/hide media item lane
local lane = reaper.GetToggleCommandStateEx(MIDI_SECTION_ID, 40819)

-- Toggle docking
reaper.MIDIEditor_OnCommand(hwnd, 40018)
if docked == 1 then
    if synced == 1 then
        reaper.MIDIEditor_OnCommand(hwnd, 40640)
    end
    if lane == 0 then
        reaper.MIDIEditor_OnCommand(hwnd, 40819)
    end
    reaper.MIDIEditor_OnCommand(hwnd, 1012)
    reaper.MIDIEditor_OnCommand(hwnd, 1011)
else
    if synced == 0 then
        reaper.MIDIEditor_OnCommand(hwnd, 40640)
    end
    if lane == 1 then
        reaper.MIDIEditor_OnCommand(hwnd, 40819)
    end
end
reaper.PreventUIRefresh(-1)