Routed Hotspot

This is network configuration

ISP(Mikrotik Hotspot)-----wireless----Mikrotik client(NAT)-----LAN----couple PC users in LAN use one hotspot account to access internet. Some of users wish to use they own hotspot accout like they direct connected to hotspot AP but also need file sharing and some other services in LAN.

Any advice is this possible and recommendation how to do that. I don’t have access to ISP Mikrotik only to client Mikrotik.
Thanks.
Best regards…

HotSpot server is capable to manage clients correctly within the same broadcast domain.
I think it will not be possible to get shares for clients connected directly to HotSpot from MikroTik client (NAT).