You can click the bottom menu collapse and expand arrow to see how it works. 
IMPORTANT NOTES:
While this is only an imitation of the existing interface, the proper way to do this if I were hired by the company is to do interviews with existing userbase to look for pain points and the needs. From the user interviews done we create personas and user stories and user empathy map. We also can get more insights from usability testing on certain tasks to complete so we can inspect the existing user flow. From here we can create a user journey map. From usability test we can use affinity diagram to sort themes and then turn into insights. We can also do a competitive audit to see what competitors have done well. After a goal statement is defined from problem statement, we can go for paper wireframes and then lo fi digital wireframe. And then we can go either mockup or hi fidelity prototype. We also must have a measure in place (KPI) to rate success after the product launch.

We must create a useful, usable, enjoyable and equitable product. We somehow must also consider accessibility in our product.
Below was done in Photoshop because one time an employer asked about my Photoshop skills. Actually, most of stuff you can see in my portfolio done in Photoshop except for the prototype