diff --git a/README.md b/README.md
index ef56176..502c136 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,28 @@ add Issue or Pull Request to Project(v2)
 gh ap
 ```
 
+### Optional Args
+
+```bash
+gh ap --help
+  -issue int
+        Issue Number
+  -pr int
+        PullRequest Number
+```
+
+- Specified Issue Number(Optional)
+
+```bash
+gh ap -issue ${issueNumber}
+```
+
+- Specified PullRequest Number(Optional)
+
+```bash
+gh ap -pr ${pullRequestNumber}
+```
+
 ## Demo
 
 ![demo](demo.gif)
diff --git a/cli.go b/cli.go
index 9cda5af..70a0808 100644
--- a/cli.go
+++ b/cli.go
@@ -54,3 +54,24 @@ func ghContent(contentType string, number string) Content {
 
 	return content
 }
+
+func ghContentList(contentType string) []Content {
+	var subCommand string
+	if contentType == "Issue" {
+		subCommand = "issue"
+	} else {
+		subCommand = "pr"
+	}
+	args := []string{subCommand, "list", "--limit", "50", "--json", "id,number,title"}
+	stdOut, _, err := gh.Exec(args...)
+	if err != nil {
+		log.Fatal(err)
+	}
+	var contents []Content
+
+	if err := json.Unmarshal(stdOut.Bytes(), &contents); err != nil {
+		panic(err)
+	}
+
+	return contents
+}
diff --git a/main.go b/main.go
index 4ba605d..7083326 100644
--- a/main.go
+++ b/main.go
@@ -1,9 +1,11 @@
 package main
 
 import (
+	"flag"
 	"github.com/cli/go-gh"
 	"github.com/cli/go-gh/pkg/api"
 	"log"
+	"strconv"
 )
 
 func getProjects(gqlclient api.GQLClient) []Project {
@@ -54,6 +56,14 @@ func getProjects(gqlclient api.GQLClient) []Project {
 }
 
 func main() {
+	var options struct {
+		issueNo int
+		prNo    int
+	}
+	flag.IntVar(&options.issueNo, "issue", 0, "Issue Number")
+	flag.IntVar(&options.prNo, "pr", 0, "PullRequest Number")
+	flag.Parse()
+
 	gqlclient, err := gh.GQLClient(nil)
 	if err != nil {
 		log.Fatal(err)
@@ -63,18 +73,28 @@ func main() {
 	projectId := askOneProjectId(projects)
 	fields := getProjectFields(gqlclient, projectId)
 
-	itemTypes := []string{"Current PullRequest", "PullRequest", "Issue"}
-	selectedType := askOneContentType(itemTypes)
-
 	var itemId string
-	if selectedType == "Current PullRequest" {
-		currentPR := ghCurrentPullRequest()
-		itemId = addProject(gqlclient, projectId, currentPR.Id)
+	var content Content
+
+	if options.issueNo != 0 || options.prNo != 0 {
+		if options.issueNo != 0 {
+			content = ghContent("Issue", strconv.Itoa(options.issueNo))
+		} else {
+			content = ghContent("PullRequest", strconv.Itoa(options.prNo))
+		}
 	} else {
-		number := askContentNumber(selectedType)
-		content := ghContent(selectedType, number)
-		itemId = addProject(gqlclient, projectId, content.Id)
+		itemTypes := []string{"Current PullRequest", "PullRequest", "Issue"}
+		selectedType := askOneContentType(itemTypes)
+
+		if selectedType == "Current PullRequest" {
+			content = ghCurrentPullRequest()
+		} else {
+			contentList := ghContentList(selectedType)
+			number := askContentNumber(selectedType, contentList)
+			content = ghContent(selectedType, number)
+		}
 	}
+	itemId = addProject(gqlclient, projectId, content.Id)
 
 	for _, field := range fields {
 		if field.DataType == "TEXT" {
diff --git a/survey.go b/survey.go
index d40b001..0a94c20 100644
--- a/survey.go
+++ b/survey.go
@@ -55,19 +55,26 @@ func askOneContentType(itemTypes []string) string {
 	return selectedType
 }
 
-func askContentNumber(contentType string) string {
+func askContentNumber(contentType string, contents []Content) string {
+	var numbers = make([]string, len(contents))
+	for i, c := range contents {
+		numbers[i] = strconv.Itoa(c.Number)
+	}
+
 	name := contentType + " Number"
 	qs := []*survey.Question{
 		{
-			Name:   "number",
-			Prompt: &survey.Input{Message: name},
-			Validate: func(v interface{}) error {
-				strValue := v.(string)
-				_, err := strconv.Atoi(strValue)
-				if err != nil {
-					return errors.New("Value is Int.")
-				}
-				return nil
+			Name: "number",
+			Prompt: &survey.Select{
+				Message: name,
+				Options: numbers,
+				Description: func(value string, index int) string {
+					return contents[index].Title
+				},
+				Filter: func(filterValue string, optValue string, optIndex int) bool {
+					return strings.Contains(contents[optIndex].Title, filterValue)
+				},
+				PageSize: 50,
 			},
 		},
 	}
@@ -76,8 +83,9 @@ func askContentNumber(contentType string) string {
 	if err != nil {
 		log.Fatal(err.Error())
 	}
+	optionAnswer := answers["number"].(survey.OptionAnswer)
 
-	return answers["number"].(string)
+	return optionAnswer.Value
 }
 
 func askTextFieldValue(fieldName string) string {