Step 1: Launch SketchUp.
Step 2: Click on the "Extension" which is located in the menu bar (or "Window" for versions before 2021), and select "Extensions Manager".

Step 3: Click "Install Extension" in the "Extensions Manager".

Step 4: Select the "Candela3D_xxx.rbz" file in the pop-up interface and click "Open" to complete the installation.

Step 5: After installation, user can see "Candela3D" in the "Extensions Manager" interface.

Step 6: Click on "Toolbar" in the "View" which is located in the menu bar.

Step 7: Select "Candela3D", "Candela3D Advanced","Candela3D Drone" , "Candela3D Shading Object" and "Candela3D Simulation" in the "Toolbar" to enable the "Candela3D" toolbar to be displayed in the SketchUp toolbar.

Step 8: The toolbar of "Candela3D" is displayed as shown in the figure below.

Step 9: User must restart SketchUp after the installation before using it.