No. Only One-Way Mode is supported.
In One-way Mode, you can only hold positions in one direction under one contract.
For example, if you open a short position and anticipate that the price will go down in the longer timeframe, but in the meanwhile, you also want to open a long position for a shorter time frame, you won’t be able to open positions in both directions at the same time. Opening positions in both directions would result in canceling one another out.