Fight Options can be used to select which pieces of information should be displayed. By default only the Combatant row is shown. Displaying more can give a nearly overwhelming set of information.
The Primary Character is used by other settings to control sorting and visibility. By default the Player is the Primary Character. Some games give no indication of the Player's name in the log file. Instead of seeing the character's name it will show "Player."
Perspective controls what perspective damage statistics are displayed from. When Offensive, the default, is selected numbers shown in the Fight Details list box will be damage done by the Combatant to the Target. When Defensive is selected numbers shown in the Fight Details list box will be damage done by the Target to the Combatant.
When Primary Character Only is checked only statistics for the Primary Character will be shown in the Fight Details list box.
When Primary Character First is checked the Primary Character will be the first Combatant shown in the Fight Details list box. The remaining Combatants will be shown in alphabetical order. When Primary Character Only is not checked the Primary Character will show up in alphabetical order with all of the other Combatants.
When Show Targets is checked a Combatant's targets will be shown in the Fight Details list box.
When Combine Targets is checked all Targets with the same name will be merged into a single set of data. This option is only available when Show Targets is checked.
When Show Weapons is checked a Combatant's Target's Weapons will be shown in the Fight Details list box.
When Combine Weapons is checked all Weapons with the same name will be merged into a single set of data. This option is only available when Show Weapons is checked.
When Differentiate Hit / Miss is checked Attacks will be broken up into Hit / Miss categories.
When Show Attacks is checked Attack information will be shown in the Fight Details list box.