A few questions....

Support Basics & Interface
1

I got a few simple questions I can’t figure out.

  1. How can I un-Parent objects (not armatures.I can do it with them)? I accidently parented to Meshs that I don’t want parented…

2.How can I undo mesh Insert Keys.

3.How can I create realistic air bubbles (underwater)?

2

I can answer #1… highlight the object you want to unparent and push ALT-P

3

If the objects are meshed into one massive objest then you just select the vertices of one (the B key is handy enogh) and press P then select seperate.

The air bubbles all i can suggest is a very shiny reflective surface possibly metallic with a blueish tint to it.

4

select both, do alt+p, choose “clear parents”

2.How can I undo mesh Insert Keys.

Find them in the ipo window (shift+F6) and then select and delete them.

3.How can I create realistic air bubbles (underwater)?

I’d use metaballs, transparent with some rather busy bluish envmap.