Hello everyone
I got vpn (PPTP1) on the router that the whole traffic route thorough that, now I want to keep it the same way but only route all /ip firewall nat add action=dst-nat chain=dstnat dst-port=XXXX protocol=tcp to-addresses=192.168.XX.XX to-ports=XX thorough an other vpn (PPTP2).
So two active vpn one (PPTP1) for everything and another one (PPTP2) just for /ip firewall nat add action=dst-nat chain=dstnat addresses with the specified port.
This is my configuration:

up up

up up

Is it even possible?

Yes, read this post, starting from the last paragraph which relates it to your context. Think about your two VPN tunnels as WANs.

Loosely related - PPTP provides almost no security, its encryption is ridiculously week from nowaday's perspective. L2TP/IPsec is equally simple (or complex) to configure and much more secure.