: Some versions allow you to set a delay between placements to make the behavior look more "legit" or human-like.
: Place your chosen .jar files into the %appdata%\.minecraft\mods folder.
Mods like the Bridging Mod allow for "reach-around" placement, letting you place blocks in the air gaps in front of or below you—similar to Minecraft: Bedrock Edition mechanics.
If you play on competitive servers like Hypixel, be extremely cautious.