Putting "guidance" text in text fields

Hi,

I would like to have an option where there is some help text in all fields that users are expected to fill in, such as "text fields" and "Drop down menus".

The type of help text that is visible in the field, until you start typing something into it.

BTW, I'm a week into using Livecycle designer, I learned a lot but this function eludes me, does it even exist?

Thanks