How you can escape after being a nothlit awaits you ( specially TOBIAS ) here
Now the Topic..
When The Escafil Device ( or how i call it , the blue box ) is in the hands of the Animorphs , they have the power to give the ability to morph to anyone , even after they are trapped. Like they gave it to David ( even though David wasn't trapped in a morph ) .
Now what they have to do is , Tobias is trapped in his hawk morph and he wants to return to his human body without losing even a single bit of his powers . So , Tobias can become a human and stay past the two hour limit , and when he loses his powers of morphing , the Escafil Device can return his powers or it can make him a new animorphs , losing all of his acquired DNA .
Or i even suppose they can extend the two hour limit or even cut off the two hour limit ....
SO what do you think ?