How To Spend Locked UTXO

To enable coin control you click : Settins | Options | Check Enable Coin Control Features | OK

Next you click “Send” | Inputs

Next you find the locked stake

Next you right click on it and UNLOCK it

Next you copy your receiving address to the clipboard (you can find that in : File | Receiving Addresses | Right click on one of them | Copy to clipboard

Paste the address in the Pay to recipient in Send money page

Put any amount

Click send

This will spend the UTXO back to yourself.