Keys in Issue Overview
To get a clearer picture of all Keys currently issued, you can access the Keys In Issue Overview screen by navigating to Business Continuity > Key > Keys In Issue.

Any keys that are overdue to be returned are marked in the Expected Return Date column with the colour defined in the Background Colour For Past Return Time setting in System Options (accessed by navigating to Tools > System Options and then clicking the System Options button).
You can do the following from the Keys In Issue Overview screen:
Double-click a record to open the Key Editor
Link Authorise Contact(s) to a Key by selecting the relevant record and clicking the Link Authorised Contact(s) to Key option in the Tasks panel
Link a Key to a Location by selecting the relevant record and clicking the Link Key to Location option in the Tasks panel
Re-issue a Key by selecting the relevant record and clicking the Re-issue Key option in the Tasks panel
Return a Key by selecting the relevant record and clicking the Return Key option in the Tasks panel