Customer attachments showing up on Sales Order Tracker

Epicor ERP 10
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1

A while back someone put a customization in our system to display Customer attachments on the Sales Order screen.
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How does this work??

This is all I see as far as the customization…

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Nothing anywhere on attachments, or the tree…???

More stuff in case this helps yall help me…

		// CustomerInfo
		Ice.Lib.Customization.PersonalizeCustomizeManager personalizeCustomizeManager = this.csm.PersonalizeCustomizeManager;
		personalizeCustomizeManager.CallAddForeignKeyView("OrderHed.CustNum", "CustomerInfo", "", "4ccc9b4e-a5a2-4277-ba71-3a6f6dfdc056", "CustomerAdapter", "IntegerGetByID", "OrderHed", true);
		this.CustomerInfo_Row = ((Ice.Lib.Framework.EpiDataView)(this.csm.GetGlobalInstance("CustomerInfo_Row")));
		System.Windows.Forms.Control topControl = personalizeCustomizeManager.TopControl;
		topControl.FindForm().SuspendLayout();

But that is in the read-only area of the script editor. This code was also present, but if I comment it out, the customer attachments still show up.

// **************************************************
// Custom code for SalesOrderTrackerForm
// Created: 10/4/2016 7:38:01 AM
// **************************************************

/*
extern alias Erp_Contracts_BO_CustShip;
extern alias Erp_Contracts_BO_MiscShip;
extern alias Erp_Contracts_BO_SalesOrder;
extern alias Erp_Contracts_BO_DropShip;
extern alias Erp_Contracts_BO_Company;
extern alias Erp_Contracts_BO_Customer;
*/

No other custom code in the script editor, no controls as far as I can tell.
The userguide mentions similar extern alias calls, so I’m thinking that code came from Object Explorer.

Nothing here either…

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I’d really like to understand how this customization works…!

Thank you