@lorenzos said:
... because I can not buy the license anymore.
yes, we can (sell) you a SUP v8 lic., just drop an email with the platform and your full address to our sales.
hth,
Norbert
Hi,
The following link is a tutorial on how to add watermark image to be used as an overlay in this case use a grid image.
http://www.dummies.com/how-to/content/how-to-work-with-watermarks-in-google-sketchup-8.html
Cheers!