It is possible to roll your expiring Futures position to a next month by closing your existing position and open a new one, using a trade ticket. Alternatively, the same can be done by using Futures spread.
See the below example from SaxoTraderGO.
Go to Trading > Find instrument > click on Futures Spread icon 
after finding a contract you want.
Choose order type, buy / sell, amount and duration. Check buy / sell legs and trade details before placing an order.
In below example when executing a Buy order, Brent Crude - Jan 2019 will be bought and Brent Crude - Mar 2019 will be sold.
Above scenario suits clients who are rolling their Brent Crude - Jan 2019 short position - they become short next month.
Read about Futures Trading Conditions on our web page.