HI I've been taught Google Sketchup but am rusty and am getting stuck on simple tasks. I was wondering if anyone could help, I think my logic must be different from the comps..

I just want to download a plugin. Find one online, click on it to download, it doesn't automatically download into the plugin drop down in Sketchup. You can direct it into another file however so downloading it into the plugin folder on the comp might make sense? But it seems there are many of these on the mac. In class we used to use a lot a Ruby file, saving it in there might work too. I suppose my real question is how do you Open it from sketchup? Feeling very stupid and have wasted hours.

My second question concerns the plugin, I wanted a plugin which helps the free hand draw of curves. As I am attempting to transfer a curvilinear paper design over to Sketchup...?

If you are able to help I would appreciate it so very much.
Many thanks...feeling very stupid.