I have my new rootings growing in my office away from sum light, today I've noticed two of them had dropped one leaf each. What am I doing wrong should I be concerned? should I bring them close to window where they can see some sun light?

I had the same problem recently with about 20 cuttings that were up potted to 1gal. and placed under T5 grow lights...leaves started to wilt and drop off...at first it was just 1 or 2 plants then more followed suit...so the advice that I got from the forum was to build a humidity dome over the plants to increase the moisture level around the plants...within 2 or 3 days the leaves started to perk up and look a lot healthier...now everything is starting to look much greener, and no more leaves are dropping off.   Good Luck with your fig trees. 

Thanks Vince for the quick response, how did you go about building humidity? I have mine in a plastic  storage clear container.

Sam...I used the ultra light clear plastic from the dry cleaners to form a tent over all 12 plants under one T5 light, and all 8 plants under the other light...I used 3/8" bamboo to form the tent poles.  The plants were far to big to keep in a plastic container after up potting them.  I also lift one side of the tent to spray a fine mist of water inside the tent three times a day.  Hope this helps.

You can also just invert another plastic cup over the cutting. I use the same cups with the same holes drilled in them that the cuttings are planted in. Spray a little water in the cup you are covering them with to get the humidity up quickly. For me the leaves recover in a day or two.