Dupe Trigger

I'm not sure why a mod like this wasn't created yet, so I did it. With this weird named but straightforward mod, you can double any item in your main-hand as simply as pressing a button (configurable in Misc section, default is =). It works even when cheats are disabled. It works with both blocks and items, modded or not, and keeps their NBT data.

This mod was meant to be used in singleplayer mode and LAN (I haven't tested it on servers) by those who want an easier life, are feeling like it or just want something like this installed in case of need. Whatever be your reason, it will do what it's supposed to do, so I hope you like it :)

This may be a simple concept mod, but be aware that it is completely capable of ruining your fun considering its high balance-breaking potential. I mean, there's no direct drawback to it; you press the keybind and a 2 turns into 4. Use it lightly (recommended only when extremely needed) if you want to help maintain a long playthrough, unless you know how to use it moderately (i.e. not abuse it).