I've been struggling with making the Difficulty become enabled lately, but I got it "fixed". For those who also need help with that, click on the gear icon to the right of the Character Sheet , besides the Advances tab button . There, you'll find "Query Additional Bonuses" and "Query Difficulty", both set to On by default (but not working). Set them to Off and then On again and it will unlock the feature to choose difficulty and target bonuses. As of today, the modifiers have been working correctly for me. The whole thing isn't particularly intuitive and fixes would be appreciated. If you want to change the default difficulty option from Average +20 to Challenging +0 (or something else), you must go to the Attributes & Abilities tab and look for difficulty_query (it will only show up after doing the trick above to unlock it), and change the text from the default : ?{Difficulty|Average (+20), 20|Very Easy (+60), 60|Easy (+40), 40|Average (+20), 20|Challenging (0), 0|Difficult (-10), -10|Hard (-20), -20|Very Hard (-30), -30} To: ?{Difficulty|Challenging (+0), 0|Very Easy (+60), 60|Easy (+40), 40|Average (+20), 20|Challenging (0), 0|Difficult (-10), -10|Hard (-20), -20|Very Hard (-30), -30} It does not seem to be possible to remove the SL Bonus pop-up window as of yet.