Blueprint - Layers?

Hello to everybody - iam a new user of Glyphs, and i hope you can help me.
I want to have an background layer (Blueprint) from an hand sketched font on an own layer. I want to draw the whole Glyphs directly in Glyphs based on the sketched font that lies unter the paths in Glyphs?
Is this possible.
I want to solve this with the Layers on the right side in the Programm but i not get it out?
thx for help

You can place images in glyphs. There is a chapter about it in the handbook, which you can download on the Get Started page on this website.

thank you