Email address settings

i noticed the following options:
Remove read messages when inbox reaches xxx messages.
Remove read messages from inbox older than xxx days.

i would like to remove read messages MANUALLY, and not have them automatically removed. What’s the easiest way to do this?

I have a variety of folders that branch out from my inbox. does Dreamhost remove read messages from those folders as well using this criteria? thanks for the help.

These settings only apply to the inbox.