I am learning PS according to Beginners.Guide /J.Horton/ and my first steps with PS 1.4 "simple" instalation work correctly.( simple ~Lite mode: a blank and empty PrestaShop will be installed. It will have no modules, no theme, and no demo products/categories) I wish to start learning on PS 1.5xxx but there is no choice of "simple" instalation. My attempt: After uninstaling all modules and add/install Cart module, it is not visible in front office. Trying Currency => there are errors in layout etc.