In order to manage condition types, you must belong to a user group that has permission to manage condition types. When managing condition types you can add, remove and rename the lease conditions available in Leases.
For more information on how to:
add a condition type in Leases, see the section "Add a condition type in Leases"
remove a condition type from Leases, see the section "Remove a condition type from Leases"
rename a condition type available in Leases, see the section "Rename a condition type available in Leases".