Port forwarding PPTP vpn on CHR on digital ocean

Hello everyone, I have have configured PPTP VPN on Digital ocean droplet running CHR Router OS 7.X. I have a mikrotik on my local network and it is able to connect to the VPN sever on digital ocean. I want to be able to login via Winbox from the mikrotik in my local network via droplet IP address or pptp ip assigned on the pptp client.
For instance,
Assuming my CHR has IP address 154.190.48.29, and the local mikrotik has been assigned an IP address 10.0.0.11, I want to login to the local mikrotik using 154.190.48.29:8291 or 10.0.0.11:8291
I need to login using the local username eg admin and password. I am new in Mikrotik, please assist.