@calypsoart said:

I was just asked by someone how to align multiple objects along their centers. I believe he meant selecting multiple objects and they align there center points. Methods? Plugins?

You can use the JHS power Bar... See in youtube what is this bar. It contain align vertically, horizontally and all together... Try it!!!

Does anyone know how can I make one hammock constantly hovering. Imagine the swing in a park.
Even I want to make 4 balls that have the same weight and one hits the other constantly.
Someone knows how I can help?

About Sketchy Physics
If anyone want to help.
Since one week I'm trying to install the "SketchyPhysics" in my laptop with WIN 10 and. 64x
But, I can not to.
Any try is losed. I have try any method. In "Reference---> Extensions" I can see it but it doesn;t work. Its bar does not disapear.
Can anyone help me to how to download with right way?