Initiative Bonus for 5E NPC's

[SailorLovins]

How do I create a trait that gives an NPC a positive bonus to initiative only while leaving its base dexterity untouched?

[Zacchaeus]

The only way I think would be to type an effect directly into the Combat Tracker; INIT: x. You could also use this extension (https://www.fantasygrounds.com/forums/showthread.php?40833-5E-Advanced-Effects-(items-npcs-characters)) I think.

[Jip]

I'll confirm that you can definitely use the "5e Advanced Effects" extension that Zacchaeus links above to add to an NPC's initiative. I have it implemented and use it for that purpose (and many other uses too).