I'd like to know if there's a way to go to a specific point in a movie using the numbers (i.e. 1000 to go to the 10th minute). If I press 0000 the movie does go to the beggining but I can't go anywhere else using the numbers.
I am not sure if this is what you are seeking (no pun intended!), but you can use the right and left arrow keys to skip forward or backward by progessively larger time increments.
The time increments are defined in MP Configuration / General / Skip steps, so you can change them from the default values, if you wish....
I haven't tried this in several MP versions, but as far as I know it still works: You can type numbers as you have tried, but you start with hours. 0010 will take you ten minutes into the movie. I have no idea how detailed you can be, but try punching more numbers and check if it takes seconds too. I think it should.