Yes I believe you can =. Some requirements should be met.
You must have at least one Glenmoril Witch Head in your inventory.
You must complete at least one Radiant Quest from Vilkas, after completing "Glory of the Dead" with a Glenmoril Witch Head in your inventory.
This could also be a glitch
I am making a few assumptions here so please bear with me. If you knew this already and it doesn't help, it could help someone else.
While items are in your inventory, you can drag them on top of each other, however the stack are created based on the type of item, and in the case of food, their quality. You cannot always have different types of quality food on top of another. This is dependant on which patch your running, some patches allowed it.
Once you have the stack correct, it will create a square in the top left corner of the stack, which you can grab and then drag onto the fridge. This should add all the items to the fridge.
Sadly, there is no way to stack everything you want into one big pile and then add them to the fridge. i.e. You can't mix fish and tomatoes, or even tomatoes and potatos together. The stacks of the same item and group drag is the closest you will get.
I am sorry for myself not being clear last time, the fact is that when you are going to score dark elixir and save it u should do following things
firstly, (an easy one) make a base that protects de at the centre with a lot of splash damages around
normally peole use barchers but i recommend(if u have a capacity of 200) using 60 barbarian, 60 archers, 4 giants, 8 wallbreakers, and 44 goblins, and use three lightning spells
Strategy: take the lightning spells to damages at least on or( if near) more of the splash damage objects (like, wiz tower, mortars) and the clear up the others by distracting the defenses with giants and handling them with barchers, after all the splash damage defenses has been taken out, now u dont need to fear so, leave all of the troops at once, and they will sure get all the loot
remember: Never set out all the barchers or goblin troops when there are still splash damage objects around and especially goblins
relation to dark elixir: the relation od=f this strategy with dark elixir is that, even if u come across a very strong base but u can still use the lightning spell to grab some dark elixir from the storage and use few of the barchers to take something from the pump, i did the same until i had taken my heroes to lvl 5
This is the new "Arms Deal" update which went live yesterday (14/08/2013).
Valve released a really good FAQ on it, which can be found here.
The bits of interest for your particular question, "how can I get new guns?":
Timed weapon drops, just by playing on official and community servers in any game mode.
Opening dropped weapon cases with a weapon case key.
Trade weapons with other players through Steam's Trading interface.
Purchase them from other players through the Steam Marketplace.
Regarding the first point, these are obtained for play time over the course of a week. As your play time increases, the drop rate will slow down. This is reset when the week rolls over. Not sure the start day or time of a week though.
I'm not 100% sure where you will get the weapon case keys. The below quote suggests that you buy these:
This update will also actively support the CS:GO competitive community with the introduction of the eSports Weapon Case. A portion of the proceeds from sales of eSports Case Keys will go towards prize purses at competitive events.
Hope that helps.