share VPN

I bought a VPN access and I have been able to connect it to a windows OS and successfully shared it on my local network (about 4 computers) and it worked fine i was hoping I would be able to do the same on the mikrotik, I has been able to connect the mikrotik to the VPN network but I dont know how to share over the net work

Add a route or a default gw through the vpn and the traffic should pass that way. Could be that you have to nat outgoing on the vpn interface.

can you gave me example for configuration

hi
you can mark packet your lan request and then route that request from vpn gateway.
sample:

/ip firewall mangle add chain=forward dst-address=(your lan ip address) action=mark-packet new-packet-mark=lan-request
/ip route gateway=(vpn gateway ip address) routingmark=lan-request
with this config,your request from lan,sen to the vpn gateway.