When you open the search panel, it will appear as it was when the panel was last closed.
At any time you can clear all the search fields by clicking the Clear Search fields icon 
at the top of the panel.
To save a search for future use, click the Save Search icon 
at the top of the panel to save the current combination of search settings. Enter a name for the new search (maximum of 20 characters) or click Replace Search and select a search to overwrite. Click Save. Searches are stored separately for each user.
To open or remove a previously stored search, click the arrow to the right of the Open Stored Search icon 
at the top of the panel and hover on a search from the drop down list. Select Open to open the search or select Delete to remove it from the list (these two options may only be visible when your browser is maximised). Saved searches are listed in alphabetical order.