Any other ideas?

I've searched around and not found much about animation. I'd like to make an animation out of interpolations. It takes far too long to do this manually. Are there tools to speed up the process?

I'd like to do what this guy is doing: http://www.youtube.com/watch?v=zMfMdBir9H4 When I go to the Path Effect Editor I don't see the Mirror Symmetry effect he uses (or a lot of the others on his list for that matter). How can I use that effect? I understand I can draw a half and duplicate it, but I...

Thanks! For anyone reading this, there's a lot more info here: http://www.linuxformat.com/wiki/index.php/Inkscape_-_cloning_and_tiling

Thanks. Now say I then draw on the original. Is there a way to get that drawing on all the clones?

I'd like to make lots of copies of an object, change the original, and have all the copies change as well. Is there a way to do this?

I'm making a game involving tiles and want to have them together as a map when I edit them.

I'll explain. In Photoshop, you can move multiple layers into a folder that appears in the layers box. This is very useful for keeping things tidy when you're working with many layers.

How do I create a layer as a sublayer?

Is there a way to group layers into a folder? I don't see an option for this anywhere.

Great! It turns out I simply needed "Break Apart". Your other comments are helpful with what I want to do next. Thanks guys!

So I just used the "Trace Bitmap" command on a silhouette I pulled from the internet. The silhouette has multiple distinct regions. When I click one such region, I'd like to only have that selected. How can I do this?