Hello,
there will be pure MikroTik devices based network, besides the intercom, see below.

I would like to know if can allow changing basic settings on a per-user base, means each user shall be able to
- change its WiFi Password and only its own one.
There will be 8 different SSIDs, one per flat, dedicated to each flat’s VLAN. - block devices accessing the www, which are in its own VLAN.
It shall not be possible to see devices being connected to other different VLANs besides its own one
Can that be done using Webfig - “Design Skin”?