If you really cannot pay, export your SketchUp model to Blender and learn keyframe animation there. But if you value your time and data—buy the legitimate license key.
: Minor updates (e.g., version 2.x.y) are free for license holders. SketchUp Community How to Activate Your License Key keyframe animation sketchup license key
"Welcome to the bottom of the barrel, Elias," he muttered to himself, typing a command into the quantum-decoder. If you really cannot pay, export your SketchUp