Hi ​@Mary Christie great question. We do not have an option under Purchase Information for Leased Devices specifically. However, you could track these types of devices in several different ways.

1. Create a custom asset type of ‘Leased Devices’.
2. Create a custom field called ‘Leased Device’ and possibly utilize the Field Type: Select so there can be yes or no option. You could also add a conditional filter if these only pertain to certain types of assets. Then you can update the field inside of each asset or potentially use a bulk asset actions of → set info and update that custom field. 

I hope this makes sense. Please let me know!