How do you swap on Klever?

Excuse me, could you please elaborate on the process of swapping cryptocurrencies on Klever? I'm interested in understanding the steps I need to take to successfully swap one token for another. Specifically, are there any prerequisites or fees involved? Also, is there a user-friendly interface that guides me through the process, or is it more complex and requires technical knowledge? Lastly, how secure is the swapping process on Klever, and what measures are in place to protect users' funds?