ok so im trying something new here. I'm using Insomnia Group's Mob Scaler mod for this as the base mod. I then used a command block system so you can change your player's size without using the command, instead, you can maneuver and hold specific items to change your size.

NOTE!!!
do not use this in a multiplayer world. use it on a private world only. I will update it eventually to make it so you can use it in multiplayer worlds, but if you use it in a multiplayer world, it will go bonkers and affect everyone.

ALSO NOTE!!!
you must have the mob scaler mod downloaded on the world you use this in. if the mod is not active on the world, this will not work at all.

HOW TO USE
first, download the structure. it will be called, "antmanmod.mcstructure". go into your world with the mod active, and grab a structure block using commands. before doing any of this, it is highly recomended you turn command block outputs in the chat off and send command feedback off. place the structure block, put it in "load" mode, then click import. then find the structure file i mentioned in the second sentence "antmanmod.mcstructure", and put the structure. you'll immediately have items placed in your hotbar. before doing doing anything, it's highly recommended you go around the structure and find the manuals. the manuals will teach you how to use it.

DOWNLOAD the mod
go to Size Scaler Addon | Minecraft PE Mods & Addons (mcpedl.com) and scroll down until you find the download.
click download, youll be sent to a website. follow the instructions to download the file. once the file is downloaded, left click on it, anywhere including in the files software and on the desktop. the mod will be downloaded to your game. to activate it on a world create a world or use an existing world, go to the settings, find "behavior packs". from there, activate the mod. this will not work on worlds with achievements. you have to use it on a world with cheats and no achievements.



ATTENTION
I own no right to this mod. it is owned by Insomnia Group on mcpedl. I am making this to make the functions of the mod easier to use.

INSOMNIA GROUP
Posts by Insomnia Group | MCPEDL