In the home menu, you should see an option which says Add Part
When you click on it, the program will add a part.
Using the move, resize and rotate tools, you can change the part's
properties to put it in the right spot
Don't Worry!
If you want a different shope for the part, you can click under the add part button
to select the shape out of four shapes. They are...
When you hover above the workspace, you can add different types of shapes, which are:
If you do not want those shapes, you will have to add a mesh.
First of all, clicking the plus on the workspace, you can add a mesh part.
To insert a file for a mesh, first of all, you have to publish the place, and upload it in meshes in the Game Explorer.
Meshes are FBX files, which simply are 3D shapes, but can be more advanced than simple cubes etc.
If you want one, you'll need to find a program which can save objects as FBX files.
An example I know of is Paint 3D, and sometimes I use other programs,
save the files as OBJ files, then translate it to FBX files in Paint 3D.
One thing is for sure, meshes are complicated!
At one point, you may want to change the part's colour. To do this, first of all, check if the Properties menu is open. If it is, then skip the following text. If not, go to the VEIW menu, and click on Properties to open the properties menu.
To change the part that you want to decorate, make sure to click
on it. Now that you have selected it, scroll through the menu to find BrickColor
Once you have found it, a colour picker will open up.
Which ever colour you choose will show up!
Material
This can make the part look like it is made out of Rock, Wood, Grass, Pebbles etc.
Transparency
Transparency is a number between 0 and 1. The higher the number, the clearer the part.
Reflectance works similarily.