The original post explaining the splitting feature Thanks to SilkNetwork
https://bitcointalk.org/index.php?topic=1601099.msg16350474#msg16350474

I'll just do a newbee version of it since it's a great feature of this wallet
A. Create a new address in the wallet:
1. Go to wallet menu File
2. Click Receiving Addresses a new window should pop-up
3. Click New a new window should pop-up
4. Enter a label for your address (like Split or your choice)
5. Click OK

Your new address should appear in
File->Receiving address menu with the label you created
6. Copy the address to clipboard (right-click on the address, copy address).


B. Enable "Coin Control"
1. Go to the wallet menu Settings
2. Click Options, a new wimdow will pop-up
3. Click Wallet
4. Click Enable Coin Control Features make sure it's ticked
5. Click OK



C. Split the coins
1. Click Send label
2. Click Inputs a new window will pop-up
3. Select input you want to split (biggest one)
4. Close "Coin Control" and go back to send tab.
5. Tick "Split Coins".
6. In the "# of Inputs" field, type in amount of inputs you wish to create.
(If you have a million coins, make 1000 inputs, if you have 100,000's of coins make 100's inputs, if you have 10,000's make 10's of inputs, if you have 100's of coins don't bother to split your inputs and just buy more Silk)
7. In the address field of the send form, paste the address you created in step A6 or click the paste button or Ctrl+V
8. Make a note of the Amount After fee.
9. In the amount field of the send form enter the amount of coins from step 8. If you see Insufficient funds just lower the amount until you're OK
10 Hit Send


Happy staking