Feature Request: Bind Variable Support in SQL Document?

Seeing this text in the promotion for Plyxon...

Quote

You can use both bind variables and substitution variables in your SQL Documents, and define various data and control properties for each variable

I was reminded that PSD doesn't support bind variables in SQL windows, only Test Script and Command windows.

Is there any possibility of this slight being corrected?

Thanks in Advance,

Stew