If you have some free time with developing, then check this suggestion.
It would be great to speed up find/replace algoritm. Sometimes i have to change large insert statements (fev tousants of rows), replacing for example date col, or separator char. Sqlnav doing this relatively slow and freezes while doing this.
For example replacing separator for 10 000 rows with 10 cols takes about 15 second for sqlnav. UltraEdit is doing this in about 0.5 sec.