How do you create an icon for imported models

[steveh27956226]

So I need to bring in loads of models into my library.
I want to organide them with icon preview but cant seem to work out how.

Thanks for your help.

[Ares Hovhannesyan · Accepted solution]

You can add your selected model on stage, click plus button of library panel and add model. 

[steveh27956226]

Thanks I got that now, thank you, I was dragging my FBX in but getting the default FBX icon in the library.
With that now understood, where is the library saved to so I can customise those icons?
Thank you.