How many times have you entered a statement in immediate execution mode and misspelled the name of a function or variable, or have unbalanced ('s, ['s, or 's, etc., and you press Enter and get VALUE ERROR, SYNTAX ERROR, whatever?  And these days with the greatly enhanced syntax coloring where, for example, you can pick a color for "Undefined Name" (I use purple), and "Coding Error" (I use red) and you type in your statement and just out of the corner of your eye you see purple or red but you're finger is already on its way to the Enter key -- too late.
 
Since APL+Win obviously already knows there's something wrong (either there's a red flag in the left margin or something is colored with the "Undefined Name" or "Coding Error" color), wouldn't it be nice if, rather than "letting" you get the impending error splashed all over your session, that it would just beep and display a message on the status bar?  Of course, this new behavior should be selectable, and be off by default.
 
This certainly isn't critical, but it would be a programmer-friendly feature, and there some good ones these days, such as syntax coloring.
 
Thoughts?
 
     p