Default loot Except Locked crate and Airdrops

Can i use this plugin to keep Everything Default Rust loot but change the airdrop and timed locked crate from chinook and cargo?  I did d/l the plugin and changed the loot from the airdrops and locked crates but then people noticed all the loot on the server was messed up..Red barrels only had crude in it and other barrels also only had 1 item and then the junkpile brown boxes had 6 or more items ,, I never touched these items ,,, I jus want to BUFF  airdrops and locked crates from chinook and cargo...Is this possible or would I have to spend hours changing every type of loot container ? 

Thanks for any help/advice  
I run a vanilla server not trying to boost any loot jus buff the 2 items 

 

I meant to say Nerf the the 2 items not Buff