US Options Recording

I’ve currently been using unlisted investments through the web login for some long calls & puts (US Options) but I’ve run into a snag with entering a bullish put spread as the the first entry for an unlisted investment has to be a “Buy” order, however I can’t show this first order as a net credit.

Have I missed a better way of recording option positions or am I stuck with fudging the buy and sell to show total gain/loss once the short positions are closed?