I've a unique use case, where we want to have some fields from a work items hidden along with the history from the externals. We have custom rules in place for fields which we want to make read only, hidden - but we want the history to be hidden too.
My approach was to have two different projects, and use a cross project query - there will be some work in terms of importing and exporting data but that will keep us away from what fields are hidden and what not.
Any suggestions or guidelines on this would be much appreciated.
Thanks,