manarune cooldown

[prymus1]

Hello, I am having a problem with a manarune's cooldown. I can use mr and any other spell/rune at the same time. I'd like manarune to share cooldowns with runes (so you cannot use mr+sd/uh at the same time) but not with spells, if it's even possible.
Manarune is placed in data/actions/scripts/manarune.lua and there is a line in data/actions/actions.xml

<action itemid="2270" script="manarune.lua" allowfaruse="0" />

and also in spells/spells.xml

<rune name="Manarune" id="2270" charges="3" maglv="0" exhaustion="1" enabled="1" allowfaruse="0" script="manarune.lua"></rune>

I've tried to put it into spells instead of actions, but then "I cannot use this object". The engine I am using is Aries 0.4.0.

-- Manarune by Avixu
-- Based on Killavus' manarune
-- Dedicated for Aries 0.4.0
-- Actions.XML: <action itemid="2270" script="manarune.lua" allowfaruse="0" />

local config = {
    constantManaAmount = 0, -- set on 0 to use a formula with variables like level etc (line 33, 34)
    removeItem = 0,
    exhaustSeconds = 1,
    exhaustStorageID = 25500, -- this one MUST be unused!
    onlyOnPlayersMsg = 'You may use this item only on players',
    exhaustedMsg = 'You are exhausted.'
  }

  function onUse(cid, item, frompos, item2, topos)

    if(isPlayer(item2.uid) == FALSE) then
      doPlayerSendCancel(cid, config.onlyOnPlayersMsg)
      doSendMagicEffect(getPlayerPosition(cid), CONST_ME_POFF)
      return FALSE
    end

    if(os.time() < getPlayerStorageValue(cid, config.exhaustStorageID)) then
      doSendMagicEffect(getPlayerPosition(cid), CONST_ME_POFF)
      doPlayerSendCancel(cid, config.exhaustedMsg)
      return FALSE
    end
   
    if config.constantManaAmount == 0 then
        local level, mlevel = getPlayerLevel(cid), getPlayerMagLevel(cid)
        -- formula settings
        -- you may use 'level' and 'mlevel'
      local manaMin = 150
      local manaMax = 250
        if manaMin < 30 then
          local manaMin = 30
        end
        if manaMax < 30 then
                  local manaMax = 30
              end
      local manaAdd = math.random(manaMin, manaMax)
      doPlayerAddMana(item2.uid, manaAdd)
      doSendAnimatedText(getPlayerPosition(item2.uid), manaAdd, TEXTCOLOR_LIGHTBLUE)
     
    else
      doPlayerAddMana(item2.uid, config.constantManaAmount)
      doSendAnimatedText(getPlayerPosition(item2.uid), config.constantManaAmount, TEXTCOLOR_LIGHTBLUE)
    end
   
    setPlayerStorageValue(cid, config.exhaustStorageID, os.time() + config.exhaustSeconds)
    doSendMagicEffect(getPlayerPosition(item2.uid), CONST_ME_MAGIC_BLUE)
    doPlayerSay(cid, "Aaaah...", 16)
       
    if config.removeItem == 1 then
      if(item.type > 1) then
        doChangeTypeItem(item.uid, item.type - 1)
      elseif(item.type == 1) then
        doRemoveItem(item.uid, 1)
      end
    end
  end