2.0's logistic groups make this unnecessary. I had a similar mod to this, but I'm not updating it because it is no longer useful.
- Name the logistics group you're using to request items. I recommend putting your username in it.
- Make a combinator using the same group.
- Make a blueprint of the combinator
You can then bring this blueprint into other worlds, and it will bring the logistic group with it. You can use it to request items.
If this does not make sense, just spend 20 minutes experimenting with logistic groups and you will figure it out.