diff --git a/README.md b/README.md
index 298b774..309c4d4 100644
--- a/README.md
+++ b/README.md
@@ -223,7 +223,7 @@ func prepareApp(opts ...cli.Opt) (app cli.App) {
         Description("a wrong command to return error for testing").
         // cmdline `FORCE_RUN=1 go run ./tiny wrong -d 8s` to verify this command to see the returned application error.
         OnAction(func(ctx context.Context, cmd cli.Cmd, args []string) (err error) {
-            dur := cmdr.CmdStore().MustDuration("wrong.duration")
+            dur := cmd.Store().MustDuration("wrong.duration")
             println("the duration is:", dur.String())
 
             ec := errors.New()
diff --git a/tiny/litecmd.go b/tiny/litecmd.go
index 9c41903..b61c083 100644
--- a/tiny/litecmd.go
+++ b/tiny/litecmd.go
@@ -65,8 +65,9 @@ func (s *liteCmdS) GetTitleName() string         { return s.name() }
 func (s *liteCmdS) GetTitleNamesArray() []string { return []string{s.name()} }
 func (s *liteCmdS) GetTitleNames() string        { return s.name() }
 
-func (s *liteCmdS) App() cli.App     { return nil }
-func (s *liteCmdS) Set() store.Store { return s.Root().App().Store() }
+func (s *liteCmdS) App() cli.App       { return nil }
+func (s *liteCmdS) Set() store.Store   { return s.Root().App().Store() }
+func (s *liteCmdS) Store() store.Store { return cmdr.CmdStore() }
 
 func (s *liteCmdS) OwnerIsValid() bool {
 	if s.OwnerIsNotNil() {
diff --git a/tiny/main.go b/tiny/main.go
index 8ec1c59..cdc7a99 100644
--- a/tiny/main.go
+++ b/tiny/main.go
@@ -121,7 +121,7 @@ func prepareApp(opts ...cli.Opt) (app cli.App) {
 		Description("a wrong command to return error for testing").
 		// cmdline `FORCE_RUN=1 go run ./tiny wrong -d 8s` to verify this command to see the returned application error.
 		OnAction(func(ctx context.Context, cmd cli.Cmd, args []string) (err error) {
-			dur := cmdr.CmdStore().MustDuration("wrong.duration")
+			dur := cmd.Store().MustDuration("wrong.duration")
 			println("the duration is:", dur.String())
 
 			ec := errors.New()
diff --git a/tiny/tiny/main.go b/tiny/tiny/main.go
index 7318c57..ef9920d 100644
--- a/tiny/tiny/main.go
+++ b/tiny/tiny/main.go
@@ -103,7 +103,7 @@ func prepareApp(opts ...cli.Opt) (app cli.App) {
 		Description("a wrong command to return error for testing").
 		// cmdline `FORCE_RUN=1 go run ./tiny wrong -d 8s` to verify this command to see the returned application error.
 		OnAction(func(ctx context.Context, cmd cli.Cmd, args []string) (err error) {
-			dur := cmdr.CmdStore().MustDuration("wrong.duration")
+			dur := cmd.Store().MustDuration("wrong.duration")
 			println("the duration is:", dur.String())
 
 			ec := errors.New()