J - Insert Character
Inserts a single character immediately before the current cursor position.
Command
J
Action
Position the cursor at the desired position. Press J. The Status/Command Line prompts:
Enter a New Character
Type a character. The character is inserted in the position immediately before the current cursor position.
Example
00022 PRINT (10,10)TEXT
Note the current cursor position. Press J. Type a colon (:). The line now reads:
00022 PRINT (10,10):TEXT