Experimental

local redside = "back" -- Redstone Output Seite
local monside = "top" -- Seite des Monitors

local option1 = 60   -- Zeit fuer Option1 in s
local option2 = 120  -- Zeit fuer Option2 in s
local option3 = 180  -- Zeit fuer Option3 in s
local option4 = 300  -- Zeit fuer Option4 in s
local option5 = 600  -- zeit fuer Option5 in s

local input = 0 -- Diesen Wert nicht veraendern
local time = 0 -- Diesen Wert nicth veraendern

m = peripheral.wrap(monside)
m.clear()

redstone.setOutput(redside,false)

function Layout()
 m.setBackgroundColor(colors.cyan)
 m.clear()
 m.setCursorPos(1,1)
 m.write(option1)
 m.write("          ")

 m.setBackgroundColor(colors.green)
 m.setCursorPos(1,2)
 m.write(option2)
 m.write("          ")

 m.setBackgroundColor(colors.yellow)
 m.setCursorPos(1,3)
 m.write(option3)
 m.write("          ")

 m.setBackgroundColor(colors.orange)
 m.setCursorPos(1,4)
 m.write(option4)
 m.write("          ")

 m.setBackgroundColor(colors.red)
 m.setCursorPos(1,5)
 m.write(option5)
 m.write("          ")
end

Layout()

function SetTime()
 if input == 1 then
  time = option1
 elseif input == 2 then
  time = option2
 elseif input == 3 then
  time = option3
 elseif input == 4 then
  time = option4
 elseif input == 5 then
  time = option5
 end
end

function Timer()
 while time >= 0.2 do
  m.clear()
  m.setCursorPos(1,3)
  m.write(time)
  m.setBackgroundColor(colors.green)
  m.setTextColor(colors.red)
  m.setCursorPos(1,5)
  m.write("Cancel ")
  m.setTextColor(colors.white)
  m.setBackgroundColor(colors.cyan)
  time = time - 0.1
  sleep(0.1)
  event,side,x,y = os.pullEvent()
  if event == "monitor_touch" then
   if x >= 1 and y == 5 then
   time = 0
   end
  end
 end
end

function Toggle()
 Layout()
 redstone.setOutput(redside,true)
 SetTime()
 Timer()
 redstone.setOutput(redside,false)
 Layout()
end

while true do
 event,side,x,y = os.pullEvent()
 if event == "monitor_touch" then
  if x >= 1 and y == 1 then
   input = 1
   Toggle()
  elseif x >= 1 and y == 2 then
   input = 2
   Toggle()
  elseif x >= 1 and y == 3 then
   input = 3
   Toggle()
  elseif x >= 1 and y == 4 then
   input = 4
   Toggle()
  elseif x >= 1 and y == 5 then
   input = 5
   Toggle()
  end
 end
end