Negative to attack rolls

Is there any way to add a negative to my attack rolls? My barbarian has great weapon master and I would like to add the -5 to hit as a global modifier.

Make sure you have "Show Global Hit Modifier" turned on on the character sheet's settings tab. Then just edt the default "Bless" to be a Great Weapon Master with a modifier of- 5.

An alternative solution is to paste this into the description of any qualifying weapon: }} {{r1=[[1d20cs>@{atkcritrange} + [[@{atkattr_base}]] + @{atkmod} + [[@{atkprofflag}]][PROF]  - ?{Great Weapon Master|No,0|Yes,5}]]}} {{r2=[[1d20cs>@{atkcritrange} + [[@{atkattr_base}]] + @{atkmod} + [[@{atkprofflag}]][PROF] - ?{Great Weapon Master}]]}} {{dmg1=[[@{dmgbase}+[[@{dmgattr}]] +@{dmgmod}[MOD] + (?{Great Weapon Master}*2)]] Then you can have the attack and damage modified accordingly on an attack by attack basis (if auto damage is off you'll need to answer the query on the damage roll too but still easier than having to check/uncheck the global mods).