Presentation of option liability in reports


I have been recording option trading transactions using method 3 (position as the seller of Call Options) provided in the link below:

At year end, when the seller has open position for the Call Options, it is shown as a negative
investment asset in the Statement of Financial Position.

Am wondering if there is a way to present the open position of Call Options as a Liability in the Statement of Financial Position instead of showing it as a negative amount in asset?