Possible to have a ring that gives +1 to attack for all melee weapons?

I'm a complete newb trying to move my d&d 5e game online.  I'm using the OGL character sheets.  One of my characters has a custom magic item.  A ring that gives +1 to hit with melee attacks, +2 to damage to evil creatures, and can be used 1d4 times a day to tell if someone is lying.  Any suggestions on how to model this in roll20?

So I read a bit more about this, and it looks like I can only use bonus to hit and damage with weapons.  Can anyone confirm?  Any other suggestions for how to best model this item in roll20?  It looks like I can mark it as a "resource" to model the chargers it has for truth-telling.  Any other suggestions for how to best integrate this item into roll20?