Try trader investor website, I’ve recently seen the script you were looking for there.
If you still need it, please let me know and I will code it. Should take no more than 15 minutes. MQL only please.
Where is it?
I'll write tomorrow when I get back home. MQL4 right?
This script allows to quickly reverse any open position
or go to fxstreet.com/platforms and search scripts for " reverse postion "