How do I set customized changes in Custom Toolsets during deployed installation on Adobe Acrobat Pro XI?

It's in the ETK:

3   Pre-Deployment Planning — Enterprise Administration Guide

3.7.4   Tool Sets

Acrobat 11.0 introduces a streamlined way to create and manage custom tool sets across the enterprise. A Customize button in the upper right-hand area of the toolbar allows users to create new tool sets, manage existing tool sets, and choose any existing tool set.

This feature helps organizations standardize task-specific tool views, reduce training costs, and improve employee efficiency by grouping related tools into a common view. This feature allows:

End users to easily create or import custom tool sets.

Easy switching between different tool sets.

IT to create, distribute, and otherwise manage tool sets across the enterprise.

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3.7.4.1   Tool set file locations

Tool set files reside in two locations:

A local user directory (full access): Files which are stored and imported by the current user are placed in the default current user’s directory. For example:

C:\Users\<username>\AppData\Roaming\Adobe\Acrobat\11.0\UICustomization\<anyname>.aaui

A local, product directory (read only): Files in this directory are visible to any user on the machine. For example:

C:\Program Files (x86)\Adobe\Acrobat 11.0\Acrobat\UICustomization\<language>\<anyname>.aaui

3.7.4.2   UI overview

To work with tool sets:

Choose Customize > Manage Tool Sets.

Perform any needed action.

Note When creating a new Tool Set, you can choose any available tool in any desired order.

Managing tool sets

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