Scaling objects

I see comment on Google Play saying "the objects created are too small". You can change size of objects with the scale tool. Follow this sequence:

1. Move the camera and place near the object (you will see the object in front).
2. Click on "Select Object" tool. 
3. Click on screen object position: then, the object is selected (you will see red box around it), and the related tools are displayed.
4. Select "Scale Object".
5. If none of axis buttons (X, Y, Z) is checked:
1. Click on + or - button to change the scale of the object.
2. Or multi-gesture with two fingers (like zoom on photos).
6. If one axis button is checked, the scale change only for this axis