View difference between Paste ID: RWu5vYEU and ZJDKPsBg

 sleep(10)
 os.loadAPI("button")
 m = peripheral.wrap("top")
 m.clear()
 rednet.open("bottom")
 local page = 1
 local pages = 0
 local names = {}
 local turtles = {}
 local remove = false
 
 function fillTurtles()
    turtles[1] = 44
 --   turtles[2] = 114
 --   turtles[3] = 117
 end
 
 function fillTable()
    m.clear()
    button.clearTable()
    local totalrows = 0
    local numNames = 0
    local col = 2
    local row = 12
    local countRow = 1
    local currName = 0
    local npp = 12 --names per page
    for turt, data in pairs(names) do
       for i,j in pairs(data) do
          totalrows = totalrows+1
       end
    end
    pages = math.ceil(totalrows/npp)
    print(totalrows)
    for turt, data in pairs(names) do
       currName = 0
       for slot, name in pairs(data) do
        currName = currName + 1
        if currName > npp*(page-1) and currName < npp*page+1 then
          row = 4+(countRow)
          names[turt][slot] = string.sub(name, 0, 17)
          button.setTable(string.sub(name, 0, 17), runStuff, turt..":"..slot, col, col+17 , row, row)
          if col == 21 then
            col = 2
            countRow = countRow + 2
          else
            col = col+19
          end
        end
       end
    end
    button.setTable("Next Page", nextPage, "", 21, 38, 1, 1)
    button.setTable("Prev Page", prevPage, "", 2, 19, 1, 1)
-   button.setTable("Refresh", checkNames, "", 21, 38, 19, 19)
+   button.setTable("Refresh", checkNames, "", 2, 38, 19, 19)
-   button.setTable("Remove Book", removeIt, "", 2, 19, 19, 19)
+
    button.screen()
 end
 
 function nextPage()
    if page+1 <= pages then
       page = page+1
    end
    fillTable()
    sleep(0.25)
 end
 
 function prevPage()
    if page-1 >= 1 then page = page-1 end
    fillTable()
    sleep(0.25)
 end
 
 function getNames()
    names = {}
    for x, y in pairs(turtles) do
       names[y] = {}
       rednet.send(y, "getNames")
       local id, msg, dist = rednet.receive(2)
 --      print(msg)
       names[y] = textutils.unserialize(msg)
    end
 end
 
 function removeIt()
    remove = not remove
 --   print(remove)
    button.toggleButton("Remove Book")
 end
 
 function runStuff(info)
    if remove == true then
       removeBook(info)
    else
       openPortal(info)
    end
 end
 
 function removeBook(info)
    local turt, slot = string.match(info, "(%d+):(%d+)")
    button.toggleButton(names[tonumber(turt)][tonumber(slot)])
    data = "remove"..tostring(slot)
    rednet.send(tonumber(turt), data)
    rednet.receive()
    button.toggleButton(names[tonumber(turt)][tonumber(slot)])
    remove=false
    button.toggleButton("Remove Book")
 --   sleep(1)
    checkNames()
 end
 
 function openPortal(info)
    local turt,slot = string.match(info, "(%d+):(%d+)")
 --   print(names[tonumber(turt)][tonumber(slot)])
    button.toggleButton(names[tonumber(turt)][tonumber(slot)])
    print(names[tonumber(turt)][tonumber(slot)])
    data = "books"..tostring(slot)
    rednet.send(tonumber(turt), data)
    rednet.receive()
    button.toggleButton(names[tonumber(turt)][tonumber(slot)])
 end
 
 function checkNames()
    button.flash("Refresh")
    for num, turt in pairs(turtles) do
      rednet.send(turt, "checkSlots")
      msg = ""
      while msg ~= "done" do
        id, msg, dist = rednet.receive()
        if msg == "getName" then
           m.clear()
           m.setCursorPos(5, 12)
           m.write("New book detected.")
           m.setCursorPos(5, 14)
           m.write("Please enter the name")
           m.setCursorPos(5, 16)
           m.write("On the computer")
           m.setCursorPos(5, 18)
           m.write("<<----")
           term.clear()
           term.write("Please enter a name for the new book: ")
           name = read()
           rednet.send(id, name)
        end
      end
    end
    getNames()
    fillTable()
 end
 
 function getClick()
    event, side, x,y = os.pullEvent()
    if event == "monitor_touch" then
       button.checkxy(x,y)
    elseif event == "redstone" then
       print("redstone")
       sleep(5)
       checkNames()
    end
 end
 
 fillTurtles()
 fillTable()
 checkNames()
 
 
 while true do
    getClick()
 --   checkNames()
 end