Insert a image to Latex preamble in LYX

I am writing a survey report and I need used a template as a cover page from here.

It is working fine and now I need to add my university logo into that cover page. Cover page has been included in to `Latex Preamble.` Is inserting image to Latex preamble is possible? If so , how to do it? Thank you

The template uses the macro `\titleGP` to define the title. You can use `\includegraphics` inside the definition of the macro (`\titleGP`) where it suits best.