Manage sequence and validations of form fields when created from ACS Commons MCP package

Hello All

We are extending the Generic Lists provided in ACS Commons package. The current Generic Lists form is built using MCP package where we can define fields using annotations. But its not clear how to manage the sequence of the fields in this package. The form is built with random sequence of form fields. Can it be controlled?

Also how we can validations to these fields? MCP package does not have a annotation or options to add validation.

Please help

Ganesh