For # 2 if you are using Poser 9+ use the Object Menu --->Add Constraint. This will attach an object to an other object/part. So using as an example a project I did a couple years ago.

One of the scenes required a Ninja Crow to throw a ball at some Pirates. The scene jumped from a view of the Crows and the view of the Pirates. Workflow was

1: Added the Ninja Crow and applied a BVH of a pitcher throwing a ball.

2: Added the ball object and placed it behind and to the left of the camera.

3: With the ball selected go to Object Menu and click on Add Constraint. Select the right hand of the Crow as the object to constrain to. In the parameters of the ball will be a new dial set at 1. There will be an outline box that you use to move the ball into position on the hand.

4: When the constrain dial is at 1 then the ball will follow the hand. When at 0 it will move to the location set by the XYZ trans dials. When dialed to a value between 0 & 1 it will be somewhere in between.

5: As the arm of the Crow was pointed to the front most position I started to move the ball constraint dial towards 0. This has the effect of making the ball leave the hand and appear to fly toward the camera.

　

So try it using Andy and a ball and spinning the constraint dial to see the effect.

 

 

 

 

 

 

 

 

 

Poser 5, 6, 7, 8, Poser Pro 9 (2012), 10 (2014), 11, 12, 13