VEVOR Portable Folding Workstand, 8.02 x 4.12 ft Collapsible Workbench, 6000 lbs Weight Capacity, No Assembly Foldable Work Stand with Storage Bag, Table Top NOT Included, for Garage Workshop Outdoor

Do you have to unfold the entire unit to use it, or can you unfold a part of it, making it smaller and still use it?

Since yours is so similar looking to Bora's Centipede, is yours the same quality as the Centepede, and can you interchange Bora's Centipede accessories with your unit?