Texas Instruments has a great Online tool, TI Webench to design Voltage
Regulators and more. It makes it seamlessly easy to customize a DC
Regulator for example. It's huge, cool, a time saver.

DC Regulators, every circuit needs some power.
 Maxim did have a Webinar, showing of differences, in topology and their new power module. It's short, and informative.  The module is also really small.
Maxim Wide Input DC-DC Voltage Regulator Design Made
Easy

Changing layers on a larger board, can take a lots of mouse clicks.
If you know what layers you need, keyboard short-cuts are great.
 Created a bunch of scripts, that lets you easy add and subtract layers,  what are current active. 
Without walking the menu. Helps reduce the eyestrain too.

As a old school PCB Designer grew up on Unix
Workstations, as such a Unix Shell was standard. With it
came the use of scripts , to do things.

Since Engineers need a way to view allegro board files.
 And the Orcad Lite has more functionality , why not use that.