How do I archive or restore a building?

The building and every unit in it are archived together. Undo is available for a few seconds. Restoring the building brings back the units archived with it; a unit archived separately before stays archived.

• You can't archive a building while any unit has an active or upcoming lease. The dialog links each unit and its lease; end or terminate those leases first.
• Kera doesn't delete buildings. Archive them instead.
• A unit archived with its building can only come back by restoring the building.

• "N units have active leases": open each listed lease and end it.
• "This unit was archived with its building. Restore the building to bring it back.": restore the building instead.