eAM Asset Hierarchy - Critical Setup

This is the first time we implement eAM module r12.2.. I know that this is not an easy task for an Accountant to do unlike Engineers who are well familiar with the process, but since accounting is still there so we need this to be working. Our first ever client for this module is a BUS Line and I know that Asset Hierarchy is a very important setup for this module to be successful as this will determine the flexibility of hierarchy after the module went live. These are their requirements:

1. They need to have history of terminal assignments and bus numbering for their passenger buses (Bus No.).