If you want to create multiple colour options for different selections in a design, you will need to set a different colour initially within the design first.
For example, if you want to have a bank of tall units as a different colour to the main units but wish to show different options:
1. Highlight the bank of tall units
2. Right click, and select ‘Change manufacturer/range’.
3. From this menu, select ‘Change Colour’ and select a different colour.
Back in the ArtiVR material editor menu when then creating the ArtiVR scene, these will now appear as an ‘Assignable Doors’ option where you can add colour options in the same way as previously explained.