Why cannot the motion analysis do a stop and the reopening?

Hello everyone

After one end stopped with Stop button in Animation of Motion Study,

processing continues with Calculate button from the stop position,

But, in Motion Aalysis,

it is not from the stop position and is carried out from the first position.

"Play", "PlayFromStart" methods  exist in API of MotionStudy,

but a type to reopen from the position where Calculate stopped is not found.

Will not the reopening from the position that stopped be possible by the motion analysis?

Any help is much appreciated.

Using: SW 2011 x64 Edition SP3.0

SolidworksApi macros