Secure parameters is a big topic. I’ve been meaning to write up a blog on it but priorities keep getting in the way.
The discussion at Secure Parameters may be helpful on how you’d use a secure Parameter.
The general way it works is that you enter your password in the Description tab, and when you take an action that parameter is encrypted so only the targeted machine can read the value. In ActionScript you just reference it as {parameter "secret" of action}
“Secret” is just a parameter name. You can have different names or more than one of them.
The Console does not give a user interface for changing the input display, you have to edit the .BES file with a text editor directly to use different parameter input names or to add more than one secure Parameter.