Images Folder expanding in Files Window

Hello All,
it might sound silly, but working with DW8 now , I keep on having a little but
very annoying thing every time i click into a folder in the FILES - FILES
WINDOW.
Every time i click into one of the other folder within my site - inside the
FILES - FILES Window - LOCAL VIEW - the default IMAGE folder opens up.
As i have some sites with many hundered images in this folder, its pretty
annoying to scroll down every time withing the Files window to find my desired
folder.

Is there any option so i can prevent DW from "expanding" the images folder ?

Would be great if somebody could help. Thanks in advance.