A little question related to the motion sensor.

[Aether 1]

This is the program.

local component = require("component")
local sensor = component.motion_sensor
local sides = require("sides")
local io = require("io")
local term = require("term")
local event = require("event")
sensor.setSensitivity(0.2)
local range=1
------ Functions -----

function close()
    local rs1 = component.proxy("bebe4c8f-a23e-4e7a-baec-be0124a0b598")
    rs1.setOutput(sides.right,0)
    os.sleep(1)  
  for address in component.list("redstone",true) do
        local rs = component.proxy(address)
        rs.setOutput(sides.top,15)
  end
end

function open()
  for address in component.list("redstone",true) do
    local rs = component.proxy(address)   
    rs.setOutput(sides.top,0)
   end
   os.sleep(1)  
   local rs1 = component.proxy("bebe4c8f-a23e-4e7a-baec-be0124a0b598")
   rs1.setOutput(sides.right,15)
 end

function openMan()
  open()
  print("Closing it in 8 seconds")
  os.sleep(8)
  close()
end

function detect()
    print("Detecting...")
  while true do
    local _,_,x,y,z,name=event.pull("motion")  
    if math.abs(x)<=tonumber(range) and math.abs(y)<=tonumber(range) and math.abs(z)<=tonumber(range) then  
      if name == "AetherEus" then
         open()
         print("Detected:",name)
         print("Closing the staircase in 10 seconds")
         os.sleep(10)
         close()
         return false            
      end
    end
  end
end
close()
---- end ---- 
---- Menu ----
if component.isAvailable("motion_sensor") then
  repeat
    print("Aileen:Program Started. What do I do now?")
    print("1.Open the staircase.\n2.Star detection mode.\n3.Close the staircase.\n4.Close the program.")

    local inst=io.read("*n")
  
    if inst==1 then term.clear() print("Aileen: Opening.") openMan() os.sleep(1) detect() end
    if inst==2 then term.clear() print("Aileen: Starting detection mode.") detect() end
    if inst==4 then term.clear() print("Aileen: Closing the program.") term.clear() end
    if inst==3 then term.clear() print("Aileen: Closing the staircase.") close() end
    until inst == 4
  else
  print("Plug in the motion sensor!!!")
end
return 0

It's simple it activates or deactivates a redstone machanism that opens up a path to a staircase. The two things I want to fix or add is  1. A  way to manually cancel the detecting process. 2.Fix that the motion sensor takes to long to detect or I need to jump a lo to make it work.