After creating new handler for button ...

Button -> Events -> Action -> Action Performed

... it generates method ...

private void myButtonActionPerformed(java.awt.event.ActionEvent evt) {}

... and cursor is at the beginning of line. And in most cases I must move cursor
right, select TODO comment, delete comment and write code and it's annoying. 

What about setting cursot at the end of line with selected TODO comment? User
will just start typing own code and dummy TODO will disappear.