I am willing to add this, but it should be done properly, and I am not quite sure about the details at the moment.
The paragraph in the ISkO document linked in the bug report mentioned is as follows:
"At the end of a series, each playing partner receives a 50-point bonus for each game won, and 50 points are deducted for each game lost. For every lost game at a table of four, each playing partner receives a 30-point bonus for each loss of the other playing partners. At a table with three playing
partners, the bonus is 40 points. Example at a four-player table:
The final score for playing partner A: 937 points, 18 games won, 3 games lost. Playing partners B, C, D together lost a total of 14 games."
If I understand correctly:
We count the wins of each player and reduce it by the number of losses, in the example for A: 18-3 = 15. He adds 15*50=750 points.
Additionally we sum up the losses of his opponents B and C (let's change the example to a 3 player BGA table) and add 40 points per loss - here it would be another 14*40=560 points. So A finally scores 937 + 750 + 560 = 2.247 points?
The 937 points have been calculated according the standard scoring.
If this is a variant of the standard scoring, we should add a third option ("Standard, tournament"). If it works for both scoring variants, we may add another option ("Tournament scoring" - ON / OFF).
What about games with pub rules (Ramsch, Contra/Re). Allow the tournament scoring, or should this be restricted to games without pub rules?
Could you confirm? Sorry, but at the moment I cannot read this whole document.