Edwin wrote:

I want to share one of my "sub-calendars" in outlook and everytime i
clicke it to share, it only shares my default calendar. can this be
done?

You need to grant at least "Folder Visible" permission to your mailbox and
all parent folders of the subfolder and then at least "Reviewer" permission
to the subfolder itself.
--
Brian Tillman [MVP-Outlook]