I'm going to assume the event command is the same as XP, where you can only set START, STOP, & the amount of time. So, no you can't control the position from the event command.
The position gets set in the 'initialize' method of Sprite_Timer in the games scripts.
The default position is (544 - self.bitmap.width, 0) or (456, 0).
You can permanently change the position by editing the lines that start with:
self.x =
self.y =
If you have to change them on the fly, it should look something like:
$scene.spriteset.timer_sprite.x = 0
$scene.spriteset.timer_sprite.y = 0
if you want to put it in the upper left corner of the screen
Be Well