are scripts debuggable ?

are scripts debuggable ? if not , when will they become so ?
if so, how ?

There is no debugger with breakpoints and code-stepping, if that's what you mean.

It's rare to really need one with the generally simple scripts you'd run within Opus.

You can use the DOpus.Output function to output information from a script to the script log to debug things, which has easily met all needs so far.