The syntax is correct, spaces appeared after copying/pasting.You have some syntax errors: there must not be any blanks around the "=" sign...
Can you briefly describe the scheme using the reverse proxy for my task?You can try it with a http reverse proxy that rewrites the host header to the correct one (unitv.xxxxxx.net).
*) winbox - show "Switch" menu on cAP ac devices;
*) winbox - show correct "Switch" menus on CRS328-24P-4S+;
From console is ok, but what about show this in winbox & web-iface?
It's clear, but it's bad.Switch menu was removed recently because the hw accelerated bridges are the way mikrotik goes these days.
Where can I see "Overall stats", "Rx Stats" and "Tx Stats" for wired interfaces?