Step 1: Download LiteLoader at http://www.minecraftforum.net/topic/1868280-172api-liteloader-for-minecraft-172/ Step 2: Download the mod http://www.minecraftforum.net/topic/467504-172-macro-keybind-mod-01002-beta-release/ Step 3: Wait Step 4: While it's downloading go to %appdata% and create a Mods folder Step 5: Move the mod_macros_0.10.02_beta2_for_1.7.2 (2).litemod (The thing you just downloaded in Step 2-3 to the Mods folder that you created in Step 4 Step 6: Open Minecraft Step 7: Make sure that it's in the LiteLoader profile Step 8: Play Minecraft Congratulations! You just downloaded The Macros Mod Have fun spamming!
You should probably add dont do anything illegal with this. If you plan to use this mod, and dont know the rules for using it, read this Immediately http://empireminecraft.com/threads/macro-keybind-mod.23230/