You can save filters for later by associating them with numbers 1 to 9. Press:
'1 to 9' - save the current search terms under that number.
'Shift + 1 to 9' - retrieve the search terms saved under that number.
'/' - To search for an inscription
To explore individual inscriptions further, hover the mouse over an inscription and press:
's' - to cluster it with similar inscriptions
'y' - to show John Younger's commentary for the inscription.