Is it possible to create a user (ftp or ssh) with access to several selected directories?

Question

linux

How to create one folder is understandable, but you need one user to use several folders.

Answer 1

Ordinary symlinks are not suitable for this? (ln-s)

Answer 2

as an option
mount --bind directory1 directory2
and add it to /etc/rc.local so that it doesn't crash after reboot