The rules for the 2nd and subsequent places Masterpoint awards may be changed here.
Click the ABF rules to get the standard percentages for the ABF. Similarly for the ACBL.
The other rules option just allows you to use another standard set. Manual changes are also possible.
Press [OK] will save and apply the changes to all new events, or any events that are re-scored.
[Cancel] will leave the settings as they were.