diff --git a/README.md b/README.md
index 5d49eef..785a471 100644
--- a/README.md
+++ b/README.md
@@ -63,6 +63,7 @@ They can be set in a properties file, or overridden as environment variables.
| Property | Default Value | Description |
|----------------------|-----------------------------|-----------------------------------------------------------|
| `canvas.host` | | Hostname of the Canvas instance |
+| `canvas.sso.host` | | Hostname of the Canvas OIDC auth domain |
| `canvas.baseUrl` | https://`${canvas.host}` | Base URL of the Canvas instance |
| `canvas.baseApiUrl` | `${canvas.baseUrl}`/api/v1 | Base URL for the Canvas API |
| `canvas.token` | | Token for access to Canvas instance |
@@ -122,4 +123,38 @@ Once enabled, the ui will be available at `/api/lti/swagger-ui.html`. There are
that need to be accounted for while using this setup.
This is marked as experimental due to the fact that we aren't running with this option at IU. We are running into CORS
-issues when trying to talk to our OAuth2 service via swagger, so we can't verify if it really works or not!
\ No newline at end of file
+issues when trying to talk to our OAuth2 service via swagger, so we can't verify if it really works or not!
+
+# Crosslister Lookup
+The Cross-listing Assistant in Canvas at Indiana University has a secondary launch that brings up a user interface to search for a parent
+crosslisted course. This is restricted to administrator users only. Configuration is the same as the crosslister with the exceptions listed below.
+
+## Test a local launch
+Startup the application with the `LTI_CLIENTREGISTRATION_DEFAULTCLIENT` value set to `saltire`.
+Use an LTI tool consumer launcher, like https://saltire.lti.app/platform.
+Default values are fine, with the below exceptions...
+
+In the `Message` section, set the following:
+