adobe illustrator - Automating file export with different colored objects and file names

I’ve been working with Illustrator CC 2014 on a floor map for a ~400 rooms building. To allow visitors to find rooms more quickly, I wanted to generate a series of images with highlighted rooms. The rooms are mostly rectangles with their object name corresponding with their room number.

In short, I need some sort of procedure that does the following tasks:

1. Change colour of object



2. Export to PNG using the object name within the file name


3. Change colour back


4. Go on to the next object

I have no problem with steps 1, 3 and 4 using Automating tasks, but cannot figure out how to do step 2.