Problem on a extension marketplace on magento 2 for show swatches options

I have a magento 2.3 installed in portuguese BRAZILIAN, and i have installed the extension marketplace by marketplaza, but the sellers just can register simple products, and i canot use configurable for use the swatches options... my main thing is use the swatches options for when final costumer change color for example, change on grid image too, and need to have the small blocks with color design for choose