Merging Date Fields

Hi,

I have a fact table that contains multiple date fields:

Created Date

Quoted Date

Instructed Date

Completed Date

I wish to have counts for each of these under one month heading in a matrix table - does anyone know how this is possible?

At the moment I have added a date table which links a date to the created date, but any counts for the other fields will be based on the created date not the others.

Thanks in advance