In some cases it's possible to switch from 2D drawing view to 3D model view. There are some prerequisite before it can happen:

1. Model needs to be uploaded to Unizite in addition to the drawings
2. Each floor or the model needs to be mapped to the correct drawings by using polygon editor

Switch to 3D from 2D

If everything is prepared in advance you'll see a "2D/3D" switch button in the top left corner of the drawing. Press 3D to switch, the model will be initiated on the same location as you came from on the drawing if the polygons (in the polygon editor) is aligned properly.