For example, I am using M-x occur, and want to edit the default regexp (which is shown in the prompt), and then enter your edited regexp.
can we edit the default input value ^ *[[:digit:]]\.[[:digit:]]\.[[:digit:]] +
to create a new input e.g. deleting +
at the end to get ^ *[[:digit:]]\.[[:digit:]]\.[[:digit:]]
?
The problem is how to move the default value into the editable region.
Thanks.