How to install Lumion LiveSync
Step 1: Extension Warehouse
- Navigate to Extensions->Extension Warehouse\ 
Step 2: Search "Lumion"
- Search for "Lumion LiveSync for SketchUp" 
Step 3: Select Lumion LiveSync
Step 4: Install
Step 5: Turn on LiveSync
Navigate to Extensions->Extension Warehouse\
Search for "Lumion LiveSync for SketchUp"