Combining Range and Zap Tokens
Combining range an zap tokens allows you to hide/show textboxes depending on some overall aspect of a given page, or unit of time.
Consider a monthly grid, where the following token is inserted inside a textbox containing a by-line explaining the abbreviations used to denote holidays inside the grid (such as US for USA, GB for Great Britain, ...).
[8zFe:m+00=0]
This token says : delete if there are no e-holidays in the current month. Which means that you can hide this by-line when there are no holidays on the current month spread.