Arbitrary object "properties"

From what I've seen (And can remember), the Class Designer made use of the <summary> and <remarks> XML documentation tags. Is there a way to add additional tags? I've been experimenting with using custom XML documentation tags to replace traditional "property def" documents by storing things such as InputType, Required, and MaximumLength directly in the source code. It would be nice to be able to manipulate this kind of information directly from the designer.

[485 byte] By [MelGrubb] at [2008-2-7]