Add information to the "Technical Description" tab.

First of all, I would like to thank the Symbiostock developers for this amazing plugin!

So, here are my questions:
1. How to add some more image data to the “Technical description” tab below an image? For example – size in inches and centimeters, color mode (RGB, SRGB…etc.). Because now it only shows an image resolution and file type (raster).
2. How to create an additional tab for keywords below an image?

Any ideas are very welcome! 🙂