If you are the "owner" of that Bitcoin address, then you should be able to "spend" those unspent transaction outputs (UTXOs) by opening your bitcoin wallet, selecting "Send" and create a transaction that sends a given amount of bitcoins to another address. The wallet will automagically select the appropriate UTXOs that are contained in your wallet to include in the transaction that you create.
Given that the address you have provided the link for is a "Multi-Signature" address, (ie. it starts with a "3")... then at least one other party is going to need to provide authorisation to any transaction that you create.
Which wallet software are you actually using? Did you create a "Two Factor Authentication" wallet of some description?