The newest Entrance version supports "flip book" animation, a technique that is useful for spotting time-related patterns in XY data. Here is an example you can try for yourself.
RUN ENTRANCE SCRIPTS FROM THE COMMAND LINE
Beginning with Version 1.2.74 Entrance scripts can be run from the command line utility to generate PNG files.
ANALYZING WEB SERVER LOGS
In the first in a series of application notes on mining web server log data, we'll you how to use the MaxMind GeoLite or GeoIP datasets with Entrance to find out where your web site visitors are coming from. Click here for more.
WRITING EXTENSIONS IN APPLESCRIPT
On a Mac, you can embed AppleScript in EntranceExtensions This note shows you how, and includes an example that connects Entrance to Google Earth.