Type Priorities

[Katrin Tomanek]

Hi,

is there a way to programmatically define type priorities?
Actually, I am using the subiterator functionality and I need to have 
type priorities to be set. But I don't want the user of a component to 
be able to alter the type priorities by modifying the descriptors where 
type priorities typically are set.

Does anybody have an idea?

Thanks,
Katrin