Hello.
I have some thoughts to create a real debugger for SMath Studio where one is able to execute evaluations step by step but for now I've implemented tracing functionality. Here is how it looks like:
Figure 1: Simple tracing - just specify the variables you wanna see.
Figure 2: Mathcad like tracing - first argument is string with placeholders ({0}, {1}... {n}).
Figure 3: Advanced tracing - first argument is string with advanced placeholders ({N:0} - means numeric evaluation, {S:0} - means symbolic evaluation);
Will be available in the next version of SMath Studio.
Regards.