In Channel manager module, In left sidebar vendor can see like this

Under that channel manager section Otel2Go channel module is there, while clicking that one, user can see this page

Here Property ID and Password is for that particular selected property, for each property has unique ID and vendor can change anytime his password

After copying this credentials, login into MyAllocator portal and add channels page and  he can add these credentials in MyAllocator Portal to add Otel2Go with other channel