Under View-Columns, I have only Title, time and and Filename checked. Now, when I move vertical border line from one of them to expand them, if I am not careful, others which are unchecked pop out. You have to put the cursor just right (the cross have only one straight vertical line and not two) so you can move the line to expand the one column you want.
Can you make a button which would enable only expaning of the columns and not opening the columns which are not selected?