Thanks for the feedback.

I was wondering if the UI might give users some trouble. I had decided to write my own GUI library for this application instead of using an existing one. But now, I think retooling the GUI with an existing GUI library is in order.

> Any chance this can turn into something like "building legos"?

I'm not sure what you mean by "building legos"? Right now, users can create and reuse procedures. Sub-procedures, on the other hand, are tied to a specific procedure. I think this tool can work fine as is for prototyping.

But without a better UI, users may be choosing not use the app at all. So, I'll focus on a UI redesign.