Different catalog item forms

Good morning, friends!

I have created several item forms for my catalog. One is default, one is for system administrator and one should be opened in one of documents where some data for this catalog item provided. How can I make those forms open by condition?

Every Catalog have only one default form. But you can use event "FormGetProcessing" in manager module.

You can use easy sample:
<deleted: please attach files to message>

But in sample you need may be change condition with FormType

Thanks!