Well, in the documentation it says that you have to know javascript. I have to add that if you know the syntax of C, or C++ or Java then you can use WME. And you don't have to be an expert. Just to know a few things. I, for example, knew only the basic staff about ANSI C but I didn't got any serious problems to understand and use (with a little help) the script language of WME. Just play with the wme_demo and try to modify it and if you don't know how to do something, come here and ask. Everyone is willing to help...... Oh... and the support is very good.... usually mnemonic (the creator of WME) answers every question within a few hours.