Step 1: From the top menu, press the 'Create Form' icon.

Alternatively, select 'Create Form' from the 'Create' drop-down menu. 

This will open up a new range of icons.

Step 2: From the new menu, select the box icon.

Select the plane that you would like to start sketching on. In this instance we will use the XY plane (the floor). 

Step 3: Draw a centre point rectangle.

Start the rectangle by left-clicking where the red and green lines overlap.

Enter a dimension of 50mm.

Press the TAB button.

Enter a dimension of 50mm.

Press ENTER 3 times to complete the shape.

Step 4: Modifying The Form

1. From the 'Modify' drop-down menu, select 'Edit Form'.

2. Select the four edges shown. Note: Hold the Shift key to select multiple edges.

3. With the four edges selected, drag the arrow upwards by 20 mm as shown.

4. Press Enter.

Step 5: Modifying The Form Further

1. From the 'Modify' drop-down menu, select 'Edit Form'.

2. Select the one edge shown and drag the arrow downwards by 30 mm as shown.

3. Press Enter.

Step 6:Finish Form

1. Click on the green tick in the top right corner of the screen to 'Finish Form'.

2. This action will complete the form.

Step 6: Apply the Appearance

1. Press the A key on your keyboard to enter the APPEARANCE command.

2. Select the fabric material of your choice.

3. Drag the fabric material directly onto the model.

Note: You may need to download the fabric