The control you have when autogenerating fields is only over the order of appearance.
This you can do by setting the Order property of the event args. This was introduced recently . In case you have an older version , you may need to upgrade to the latest internal build in order to have access to e.Order.
Let me know in case you need some sample code as we are in the process of updating the help for this and still do not have it online.
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items