LOSING ROUTE

Good Morning!
I'm new in the World Mikrotik , THEN I will state my problem and thank Below outset Every Help.
I Company1 and company 2 Connecting via VPN with modem in bridge and Mikrotik RB750 Already newspaper Last firmware update .
Company 1 ( Server)
FIXED ADSL IP
IP INTERNAL : 192.168.200.0/24
VPN : 192.168.88.0/24

company 2
Dynamic IP ADSL
IP INTERNAL : 192.168.254.0/24
VPN : 192.168.88.0/24

Made PPTP VPN connection IN with User " filial"
I like routes configured in both RB750 NOW , THEN company 1 I can ping the internal IP of the company 2 and unlike too. When put off the company MK 1 and reconnect , I have to go the route configuration and make the gateway pointing To return ping Internal ips the company 2 .
I would like a script that redo this connection automatically .
Thank you .
Jean