I'd like the same help here too. Sources I find online are telling me different things, but based on how the rest of the cfg is coded; I had assumed doing this code 

<
                
minecraft:*
                
biomesoplenty:*
                
forestry:*
                
ic2:*
             
\>

would have resulted in the adventuring backpack use any and every item in the game, but nothing.

I'd like the same help here too. Sources I find online are telling me different things, but based on how the rest of the cfg is coded; I had assumed doing this code 

&lt;
                
minecraft:*
                
biomesoplenty:*
                
forestry:*
                
ic2:*
             
\&gt;

would have resulted in the adventuring backpack use any and every item in the game, but nothing.

Just got back into modded minecraft and normally the longest part of starting out with a modpack is editing the forestry backpack config so it's picking up a solid amount of items overall, and as of right now I'm running into issues with it accepting my config changes, so I was curious if anybody with ATM3 has made some optimizations to their backpack configs they'd be willing to share.

Look for a pre-made custom Forestry Backpack Config