I think it's GDC what you mean. And that's already good news. You could perhaps try somehow use the CDT's implementation of the GDB debugger communication, but GDB doesn't support D anywhere near to be usefully comfortable so there's a little gap in the toolchain atm, unfortunately.
If you want overwrite mode, press your INS key ;)btw, 2 other small issues:
- if you use autocompletion when the cursor is at the start of another identifier, it overwrites it instead of inserting.
That is actually a matter of preference - believe it or not! Some IDEs offer the option to either insert or overwrite on auto-complete.
I'm ok with it becoming an option, but the default has to be insertion.Already done in trunk.
- GDB support would be awesome of course, but no hurry.