Hotspot to Client request masquerade as public

RouterOS Beginner Basics
1

Hello!

I have set up a hotspot.
wan eth 2 192.168.1.50
hotspot LAN 192.168.3.0/24
gateway 192.168.3.1

I was wondering if i can make a request that comes from the hotspot to a client (192.168.3.249) (or to any client) seem to come from a public ip instead of 192.168.3.1

I think its possible to do it with NAT but im not sure how to.

Any suggestions?

Thank you.