To insert accessories in Roblox Studio for BTools , the usual method is to load the accessory by its asset ID, then place it onto the character or rig in Studio. Roblox’s creator docs recommend using the Accessory Fitting Tool for converting and fitting accessories, while older tutorial methods use the command bar with InsertService:LoadAsset(...) to bring the item into Workspace.

Basic method

  1. Open Roblox Studio and turn on the Command Bar or use the Accessory Fitting Tool depending on what you are trying to do.
  1. Find the accessory in the Roblox catalog and copy its asset ID from the URL.
  1. Use the asset ID to insert it into Studio; tutorials show commands like game:GetService("InsertService"):LoadAsset(assetId).Parent = game.Workspace.
  1. After it appears in Workspace, select the accessory model, not just the outer model, and move it onto the rig or character.

For BTools use

If by “BTools” you mean the old building tools workflow, the accessory still needs to be inserted into the place first, then positioned manually with move/rotate tools. Some tutorials note that the accessory’s Handle may need to be unlocked before it behaves correctly in the rig.

Safer Roblox Studio route

For newer workflows, Roblox’s official documentation recommends importing the model and using the Accessory Fitting Tool to convert it properly into an accessory. That is the cleaner route if you want the item to behave like a real accessory instead of just a loose model in Workspace.

Tiny example

A common pattern is:

lua

game:GetService("InsertService"):LoadAsset(123456789).Parent = game.Workspace

Replace 123456789 with the accessory’s asset ID, then drag the inserted accessory onto your rig.

Notes

  • Make sure the accessory is compatible with the rig type you are using, such as R6 or R15.
  • If the item does not attach correctly, check the Handle settings and the fit inside the rig.

If you want, I can turn this into a short Roblox Studio step-by-step or a paste-ready script.