is there a way to set a default width of the feature pane so it's the same width every time you open a file?

sometimes when I open a file, the pane will be very narrow. other times, it will be GINORMOUS taking up 1/3, 1/2, or even more of the active model window. occasionally, when I open a file the feature pane will take over the whole screen and the only way to make it smaller is to expand SW onto