Hi,
If you're referring to something like a software layout component with e.g. "drag & drop" or shortcodes or so, there is no such thing in HikaShop, at least as of yet.
Layout changes/designs are made directly in PHP/HTML view files and stored as overrides in accordance with Joomla's MVC structure.
HikaShop lets you do so within it's backend interface:
www.hikashop.com/support/documentation/1...-display.html#layout
However, you'll need at least basic knowledge of PHP, HTML and usually also CSS.
If you have a clear idea of what you want but need help with this or other customisations, please contact me per PM (please turn on notifications for your PMs, so you know if I replied, or provide your email address in your PM).
EDIT: Ja, ich spreche deutsch.