Availability Checkboxes
On the Insert user field button you'll find a special type of data field, the availability checkbox. These fields encapsulate multiple days of availability in a single, user-friendly field. For example, you can define a field "Monday mornings", which sets the volunteer as available every Monday through the end of the year.
HTML Labels
HTML labels let you embed HTML text within a web application. These are added by clicking on the Insert user field button and selecting HTML Label. Right-click on your label and select Edit text to edit the HTML in that label. You can put any valid HTML within this label and it will word wrap and work just like any HTML content.
VSys will let you embed Javascript, Flash, IFrames, CSS, and pretty much any content you want.