Yes you can do it via SCRIPT.
You need to generate the SOAP request of each message.
Let task an example of your url link :
It contain total 5 steps:
1. Create a custom entity
2. Add a String attribute to the custom entity
3. Add a Money attribute to the custom entity
4. Add a DateTime attribute to the custom entity
5. Add a Lookup attribute to the custom entity
Use SOAP logger (it is in the SDK MsCrm 2013\SampleCode\CS\Client) to make the SOAP XML.
make 5 different SOAP xml for this example.
Execute those soap xml with the help of Sdk.Soap.js library