Unsure how to switch between page instances in touchpoint

-- load the touchpoint API
os.loadAPI("touchpoint")

-- name/location of monitor
monName = "monitor_2"

-- the side to output redstone signal
rsDirection = "bottom"

-- establish two pages of buttons
local page_1 = touchpoint.new(monName)
local page_2 = touchpoint.new(monName)

-- one variable to put each page into in order to simplify switching
local t

-- functions to switch pages
function page1()
	t = page_1
end

function page2()
	t = page_2
end

-- array for targets
target = {
["Page 1"] = 0,
["Page 2"] = 0,
["Test 7"] = 1,
["Test 8"] = 2,
["Test 9"] = 3,
["Test 10"] = 4,
["Test 11"] = 5,
["Test 12"] = 6,
["Test 1"] = 7,
["Test 2"] = 8,
["Test 3"] = 9,
["Test 4"] = 10,
["Test 5"] = 11,
["Test 6"] = 12,
}

-- a function to send redstone for appropriate buttons
function rsOut()
  redstone.setAnalogOutput(rsDirection, target[p1])
end

do
	-- page 1
	-- left column
	page_1:add("Test 7", rsOut, 2, 2, 18, 4)
	page_1:add("Test 8", rsOut, 2, 6, 18, 8)
	page_1:add("Test 9",rsOut, 2, 10, 18, 12)
	
	-- right column
	page_1:add("Test 10", rsOut, 22, 2, 38, 4)
	page_1:add("Test 11", rsOut, 22, 6, 38, 8)
	page_1:add("Test 12", rsOut, 22, 10, 38, 12)
	page_1:add("Page 2", page2, 22, 16, 38, 18)


	-- page 2
	-- left column
	page_2:add("Test 1", nil, 2, 2, 18, 4)
	page_2:add("Test 2", nil, 2, 6, 18, 8)
	page_2:add("Test 3", nil, 2, 10, 18, 12)
	page_2:add("Page 1", page1(), 2, 16, 18, 12)
	
	-- right column
	page_2:add("Test 4", nil, 22, 2, 38, 4)
	page_2:add("Test 5", nil, 22, 6, 38, 8)
	page_2:add("Test 6", nil, 22, 10, 38, 12)
end


-- Starts with page 1, checks for button clicks, flashes them and runs the program it has
--page1()

t:draw()
while true do
  -- handleEvents will convert monitor_touch events to button_click if it was on a button
  local event, p1 = t:handleEvents(os.pullEvent())
  if event == "button_click" then
	t:flash(p1)
  end
end