Can i store multiple crypto currencies in one wallet? Is it possible to make a wallet for BTC and store LTC and NMC or other coins in it?
Coinomi Universal HD Wallet will do exactly what you're looking for. 

Coinomi is a very secure and lightweight, universal, open-source HD wallet for Bitcoin and many altcoins. At the moment the supported coins are:


Bitcoin
Dogecoin
Litecoin
Peercoin
Darkcoin
Reddcoin
NuBits
NuShares
Blackcoin
Feathercoin
Rubycoin
Digitalcoin
Cannacoin


with more integrations on the way.