When I start a new file search, I get the "Find - Directory Opus" window, and I'd like it not to remember special settings I set in the previous file search, such as "Containing Text" or "Date". I'd like it to forget all that so I don't have to erase it manually (which I sometimes forget to do.)
As far as I know there isn't a way to do this at the moment.
An alternative is to use the Advanced mode where it's easier to notice when you have extra left-over search clauses, and where you could also save a Default (or whatever you want to call it) search Filter which can be easily selected from the drop-down when you want to reset things. It's probably not ideal but it might be worth trying.