Hi Shakeel Ahmed
Me too, I'm very anxious about this function because there are lots of misunderstandings certainly due to the non explicit manual :
First of all, following the various explanations of the (sellers) demonstrators from Yam but also from independant store (and if I have well understood cause I'm far from being a speciaist !!), Yamaha didn't want to call its recorder "sampler" because it has not the possibility to "slice" the loop or the sample or the recording you put as can do the MOTIF ES with its ISS function.
BUT, and of course following it was said to me, you should have the possibility to import any sample (loops, human voices, any recording) and SYNCHRONIZE it with the styles.And someone has even spoken of a time stretching function but it is still not clear if it is auto or manual editing (which would be boring !)