Menu items and front end management

Hi,

We would like to accomplish the following:

• We have multiple registered users; we want to enable them to create and manage their own galleries at the front end.
  
• We want to create menu items per year and allow the users to assign their own galleries to the appropriate menu item(s) - again at the front end.
  
• All registered users should be able to view all galleries.
  
• When not logged in, the galleries should be hidden.
  

Example: our menu could look like this:
- Galleries
- - 2016
- - 2017
- - etc.

Each user should be able to assign his galleries to one of these menu items. When viewing the site, on a page like Galleries > 2016 you would see galleries submitted by different users for that year.

Would this be possible using Droppics?

Kind regards,

Frits