By Cursor I guess you mean "Now time"?
The option to return to last now time position or stay at the current is in the Track View menu under "Options" ---> "On stop, rewind to now marker"
It will also lock scrolling if you click in the TV or PRV to perform an edit i.e. select something. To restart scrolling right click in the top half of the time ruler.
That behaviour for both Track View and PRV is changed in Track View menu---->Options--->Click Behaviour---->left click locks scroll