1. How come i got too many "dust input", this is only the second time i will transact using this wallet (to send).
The first was when i transferred the .0117 btc to it.
Hmm. Only one transaction? If its true then you might have accidentally input too much fees. What is the address that you are sending from?
2. How can i get rid of the "dust input"?
Basically go to your addresses tab, right click on the address that you are sending from and press "send from". Next, when you're at the send tab, right click and select the inputs that are very small. Its basically just a process of removing inputs that you don't really think is significant.
3. If i exclude them, what could be the consequence?
You would be sending lesser BTC.
I already tried to edit the fees manually but still the maximum i can send is .006 BTC.
Hmm. You may be spending a lot of inputs and the size of the transaction is too big.