diff --git a/README.md b/README.md
index 5735615..db117a3 100644
--- a/README.md
+++ b/README.md
@@ -1,13 +1,23 @@
 # aplus
 
-aplus cli
+This is an aplus cli utility created for students at Florida Polytechnic University to submit their aplus codes through the CLI. 
+In time, we intend to generalize this utility to all universities.
+In the meantime however, any students from other universities wishing to use the utility may change the base_link and external_tools_code (you see this in the URL when you navigate to Aplus attendance within your course) variables.
 
-# Usage
+## Usage
 
-# Launch interactive prompt
+### List all courses and canvas course codes
 aplus
+aplus --list-courses
+aplus -l
 
-# Enter code immediately
+### List favorite courses and canvas course codes
+aplus --list-favorites
+
+### Enter code immediately for an active code
 aplus -c <code>
 aplus --code <code>
 
+### Enter code for a specified course
+aplus -c <code> --course <course_code>
+aplus --code <code> --course <course_code>
\ No newline at end of file
diff --git a/aplus.go b/aplus.go
index 18beddb..427e2bf 100644
--- a/aplus.go
+++ b/aplus.go
@@ -11,7 +11,8 @@ import (
 )
 
 func launch_aplus(course_code int) {
-	aplus_link := fmt.Sprintf("%s/courses/%d/external_tools/sessionless_launch?id=913&access_token=%s", base_link, course_code, token) // 7329 always works
+	aplus_link := fmt.Sprintf("%s/courses/%d/external_tools/sessionless_launch?id=%d&access_token=%s",
+		base_link, course_code, external_tools_code, token)
 	aplus := get_aplus(token, aplus_link, client)
 
 	resp, _ := client.Get(aplus)
diff --git a/canvas.go b/canvas.go
index 3aa8050..c31265a 100644
--- a/canvas.go
+++ b/canvas.go
@@ -14,7 +14,7 @@ import (
 func initialize() {
 	base_link = "https://floridapolytechnic.instructure.com/api/v1"
 	token = os.Getenv("CANVAS_API_KEY")
-
+	external_tools_code = 913
 	jar, _ := cookiejar.New(&cookiejar.Options{
 		PublicSuffixList: publicsuffix.List,
 	})
@@ -48,27 +48,24 @@ func get_courses(token string, link string, client http.Client) []CanvasCourse {
 	return canvas_courses
 }
 
-// Need to change this to grab both ID and name, return as pairs.
-func get_course_id_name_pair(canvas_courses []CanvasCourse) []uint64 {
-	var courses []uint64
+func list_all_courses() {
+	all_courses := fmt.Sprintf("%s/courses?access_token=%s&per_page=100", base_link, token)
+
+	canvas_courses := get_courses(token, all_courses, client)
 
 	for _, course := range canvas_courses {
-		courses = append(courses, course.ID%10000)
+		fmt.Printf("%s, %d\n", course.Name, course.ID%10000)
 	}
-	return courses
 }
 
-/*
-func select_course() int {
+func list_favorite_courses() {
+
 	// course selection by user happens below
 	favorites := fmt.Sprintf("%s/users/self/favorites/courses?access_token=%s&per_page=100", base_link, token)
-	all_courses := fmt.Sprintf("%s/courses?access_token=%s&per_page=100", base_link, token)
-	var canvas_courses []CanvasCourse
-	canvas_courses = get_courses(token, favorites, client)
-	var course_ids []uint64
-	course_ids = get_course_ids(canvas_courses)
-	//selected := 1 // course_ids[selected]
-	// course selection by user happens above
-	return 0
+
+	canvas_courses := get_courses(token, favorites, client)
+
+	for _, course := range canvas_courses {
+		fmt.Printf("%s, %d\n", course.Name, course.ID%10000)
+	}
 }
-*/
diff --git a/main.go b/main.go
index 8f669e1..eb602e6 100644
--- a/main.go
+++ b/main.go
@@ -6,6 +6,7 @@ import (
 
 var base_link string
 var token string
+var external_tools_code int
 var client http.Client
 
 func main() {