Set Parameter Value by Name in Document

[john_pierson]

That node does not work and should not even be in the package. It will be removed in the next update.

Use GeniusLoci instead.
This thread discusses this in depth,

Can you modify text parameters in a model open in the background?

You are right for the wrong number of values, I got confused between the index and the numbers. After verification it works in Dynamo 1.3.4. [setparam] [multiple params1] The answer is post 9 : multiple parameters and multiple values [multiple params] Look at the list levels and lacing.