Disable Overwrite in the Command Prompt

[Helpmeh]

If you have used any Microsoft Office program before, you know what Overwrite is. About a month ago, I could enter letters/numbers/characters into the middle of text at the command prompt...but now for some reason I can't...is there any way to disable overwrite?

[macdad-]

Insert button toggles the inserting of Characters to the Replacing of Characters. 

[Helpmeh]

Insert button toggles the inserting of Characters to the Replacing of Characters. 

Really? Thanks!

[Dias de verano]

Insert button toggles the inserting of Characters to the Replacing of Characters. 

In English, that's the Insert key

[macdad-]

Key, Button whatever you want to call it

[Helpmeh]

It get's the point across either way.

[billrich]

Right Click Title Bar, click properties, [/]click insert Mode}