The purpose of a NO Display keyset is to hide this from the general What's Out box - you can always see this data on the What's Out report. Caution using this option as No Display keys are often forgotten about.
When a Property is sold or not required you can deactivate it (it will simply archive just in case it comes back). Any keys attached will go back into your available list to assign to something else. All the information around the deactivation is ...
You can duplicate a Property Card allowing you to bring across all details from the original property fields. This is handy if you are adding more than 10 keys to a card saving you time in pre-filling the same details. Once you have created a card ...