The organization of access on ftp with access for clients of accessible folders without hierarchical order?

Question

FTP

Good afternoon!
There is a distributed network (60 branches, a state structure, without ip reachability of the workstation, each in its own network). It is necessary to organize an FTP server with approximately the following hierarchical file structure:
-Network folder_1
-Network folder_2
-Branches
-Branches 1 district
-branch_1
-branch_2
-branch_3
-branch_...
-Requests
When connecting from a branch, an employee will be given access to root folders and to folders in your area. In this case, when connecting, all folders will be visible while maintaining the hierarchical structure, which is inconvenient:
Is it possible instead of such a structure using the FTP server to organize access in such a way that the FTP client sees all the folders available to it without hierarchy (for example, for branch 1):
Network folder_1
Network folder_2
branch_1
Requests