diff --git a/cmd/substreams/gui.go b/cmd/substreams/gui.go
index fa761c46..722017a1 100644
--- a/cmd/substreams/gui.go
+++ b/cmd/substreams/gui.go
@@ -70,10 +70,31 @@ func runGui(cmd *cobra.Command, args []string) (err error) {
 	default:
 		return fmt.Errorf("too many arguments")
 	}
-	// TODO: validate that the manifest is a valid substreams package
+
+	requestParams := sflags.MustGetStringArray(cmd, "params")
+
+	paramsStringMap := make(map[string]struct{})
+	for _, parameter := range requestParams {
+		moduleName := strings.Split(parameter, "=")[0]
+		paramsStringMap[moduleName] = struct{}{}
+	}
+
+	readerOptions := []manifest.Option{}
+
+	if len(requestParams) != 0 {
+		params, err := manifest.ParseParams(requestParams)
+		if err != nil {
+			return fmt.Errorf("parsing params: %w", err)
+		}
+		readerOptions = append(readerOptions, manifest.WithParams(params))
+	}
+
+	if sflags.MustGetBool(cmd, "skip-package-validation") {
+		readerOptions = append(readerOptions, manifest.SkipPackageValidationReader())
+	}
 
 	// Safe guard to ensure that the manifest file exists
-	manifestReader, err := manifest.NewReader(manifestPath)
+	manifestReader, err := manifest.NewReader(manifestPath, readerOptions...)
 	if err != nil {
 		return fmt.Errorf("manifest reader: %w", err)
 	}
@@ -102,14 +123,9 @@ func runGui(cmd *cobra.Command, args []string) (err error) {
 	network := sflags.MustGetString(cmd, "network")
 	if network == "" {
 		network = packageBundle.Package.Network
-	}
-
-	requestParams := sflags.MustGetStringArray(cmd, "params")
-
-	paramsStringMap := make(map[string]struct{})
-	for _, parameter := range requestParams {
-		moduleName := strings.Split(parameter, "=")[0]
-		paramsStringMap[moduleName] = struct{}{}
+		if network == "" {
+			return fmt.Errorf("network not set, please provide a network")
+		}
 	}
 
 	defaultParams := make([]string, 0)
diff --git a/tui2/pages/output/output.go b/tui2/pages/output/output.go
index ba9e6978..cfd9d04c 100644
--- a/tui2/pages/output/output.go
+++ b/tui2/pages/output/output.go
@@ -250,7 +250,7 @@ func (o *Output) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 			o.searchEnabled = true
 			cmds = append(cmds, common.SetModalComponentCmd(o.searchCtx))
 		case "F":
-			o.bytesRepresentation = (o.bytesRepresentation + 1) % 3
+			o.bytesRepresentation = (o.bytesRepresentation + 1) % 4
 			o.statusBar.SetBytesRepresentation(o.bytesRepresentation)
 			o.setOutputViewContent(true)
 		case "N":
diff --git a/tui2/pages/request/newinstance.go b/tui2/pages/request/newinstance.go
index 0752041e..7ebe03f2 100644
--- a/tui2/pages/request/newinstance.go
+++ b/tui2/pages/request/newinstance.go
@@ -80,9 +80,11 @@ func (c *Config) NewInstance() (out *Instance, err error) {
 		}
 		readerOptions = append(readerOptions, manifest.WithParams(params))
 	}
+
 	if c.OverrideNetwork != "" {
 		readerOptions = append(readerOptions, manifest.WithOverrideNetwork(c.OverrideNetwork))
 	}
+
 	if c.SkipPackageValidation {
 		readerOptions = append(readerOptions, manifest.SkipPackageValidationReader())
 	}