Disable "Roll with Advantage" on all NPCs in Marketplace Module

I'm starting a campaign with a relatively new group of players. I really don't like that the default setting throws a huge handful of dice onto the game board for every attack.  This is distracting and weird for new users who are just getting used to the game. I'd like to disable both "Auto-roll for advantage" and "Auto-roll damage" to keep things simple for my players. I discovered a campaign-wide toggle where you can set this before launching the game, but it doesn't seem to filter down to all the NPCs.  I'm using the Lost Mine of Phandelver as an example here. Is there any way to disable these auto-rolls across the board for all players and NPCs, without having to go through each character sheet to turn it off?

After some experimentation I've confirmed that the "Apply Default Settings" button also does not work for NPCs in the Lost Mine of Phandelver module.  So it appears that if you want to turn off automatic damage rolls you have to do it painstakingly...one npc at a time.

Ok, never mind, i just noticed the auto roll advantage and damage are only shown to the GM.  That's actually reasonable. You can close out this post.