How do you buy additional Seats? Arthur Roodenburg September 05, 2019 09:23 Updated Follow 1. Here's how 1.1: You can buy additional Seats for a License Key at our online store or from your local reseller: Lumion Website: Buy additional Seats page Lumion Website: Find a reseller page Related articles How many computers may you install Lumion on? Are Lumion updates free? How do you buy a Lumion License Key? How do you get support? Do you have to pay sales tax? Comments 0 comments Article is closed for comments.