You can specify a string to overwrite text. For example, if the text cursor is positioned as indicated in the textual region shown below:

 

 

and you specify:

 

overwrite "That"

 

ESL overwrites "This" with "That" and creates the text shown below:

 

 

After execution, the text cursor is on the first character immediately following the last overwritten character.

 

If the text cursor is at the column after the last character in a line, an overwrite STRING statement is performed as if it were an insert statement, and the line is extended.