Items - Issues

Hi

Couple of things

How do I add items that do not have any cost or quantities for messages only?

How do I add items that use a customization of a date field, ie
Recurring invoice where the direct date needs to be specified but its allways the 14th but the month and year will obviously change depening on when they are created.

Can i make the appearance of items change, ie
making the detail of items change like bold or italics

can i put into an invoice/estimate lines

thanks
mike