MIGHT BE BUT ISNT THE kotoamatsukami A SPECAIL Genjutsu to Shisui Uchiha's Mangekyō Sharingan.
Unless someone who's fluent in Japanese were to take the raw chapters and do a better job translating them, that's one of those things that really can't be known for certain.
The very basic of Sharingan can unravel the mechanics of any technique, and as long as the user can control the same elements and has the right amount of chakra, he can reproduce any technique that isn't a blood line limit.
However, since someone like Tobi is obviously an Uchiha, it would stand to reason that he could use Sharingan to reproduce any Uchiha techniques, provided that he met the requirements.
This is all assuming that he is who I've suspected he is. Seeing as how he has displayed a vastly different repertoire than any other Uchiha, I am willing to bet that his strengths lie in reconnaissance, manipulation, and deception, while Madara's lie in chakra control and raw power.
I just re read some of the chapters, and noticed a few more things. Madara was there when Tobi came up with the infinite Tsukuyomi plan. Madara was still alive when he implanted his rinnegan into Nagato. Madara didn't die after his battle with Hashirama.
Lastly, even if Tobi can't use Shisui's kotoamatsukami, he sure as hell can use another technique to control people. He controlled the fourth Mizukage for a number of years.