Routing over SSTP is broken or what ?

[AMajor-C]

I have SE server latest version and 2 routers with sstp mikrotik and keenetic.
On both routers i cannot setup routing over sstp.
It seems it caused by "Local" and "Remote" adresses.
If we using dhcp on virtual-nat we receive local adress from pool and thats good but remote address is always virtual-nat ip. But virtual-nat cannot route traffic!
On both routers we can provide local and remote address manually but if we define other address the tunnel just dont up. if we manually put route to network over interface it will not work also.
Both routers can access the network created by virtual-nat directly. But routing form networks behind doesnt work.
It seems in needs to combine L3 Switch and dhcp functionality or add routing fature to virtual-nat ?
Or i do something wrong ?
@chipitsine