From your SWPanel account you will be able to find a history of all the domains you have searched for over time. Thanks to this feature you will be able to know the status of all the domains that are in this list.
To check the Searched Domains you will have to access your Domain Portfolio from the blue side menu:
Then click on the Searched Domains tab:
This tab will show you a list of all the domains you have been searching for, over time, sorted by date.
To know the status of a domain in the list you must position the cursor on the menu [...] and click on Search availability again: