diff --git a/main.c b/main.c
index 749f6c4..c7473ec 100644
--- a/main.c
+++ b/main.c
@@ -156,6 +156,8 @@ static THD_FUNCTION(Thread1, arg)
       shell_function(shell_nargs - 1, &shell_args[1]);
       shell_function = 0;
       osalThreadSleepMilliseconds(10);
+      if (dirty && MODE_OUTPUT(setting.mode))
+        draw_menu();    // update screen if in output mode and dirty
       continue;
     }
     // Process UI inputs
@@ -2298,8 +2300,9 @@ static const VNAShellCommand commands[] =
     { "if", cmd_if,    0 },
     { "attenuate", cmd_attenuate,    0 },
     { "level", cmd_level,    0 },
+    { "sweeptime", cmd_sweeptime,    0 },
     { "leveloffset", cmd_leveloffset,    0 },
-    { "levelsweep", cmd_levelsweep,    0 },
+    { "levelchange", cmd_levelchange,    0 },
     { "modulation", cmd_modulation,    0 },
     { "rbw", cmd_rbw,    0 },
     { "mode", cmd_mode,    0 },
@@ -2428,6 +2431,10 @@ static void VNAShell_executeLine(char *line)
         } while (shell_function);
       } else {
         scp->sc_function(shell_nargs - 1, &shell_args[1]);
+        if (dirty && MODE_OUTPUT(setting.mode)) {
+          operation_requested = true;   // ensure output is updated
+          draw_menu();
+        }
       }
       return;
     }
diff --git a/nanovna.h b/nanovna.h
index a73d516..1fdcaee 100644
--- a/nanovna.h
+++ b/nanovna.h
@@ -743,6 +743,7 @@ void ui_mode_menu(void);
 void menu_push_lowoutput(void);
 void menu_push_highoutput(void);
 void menu_move_top(void);
+void draw_menu(void);
 
 // Irq operation process set
 #define OP_NONE       0x00
diff --git a/sa_cmd.c b/sa_cmd.c
index da1d8a8..3061f21 100644
--- a/sa_cmd.c
+++ b/sa_cmd.c
@@ -1,5 +1,4 @@
-/* All rights reserved.
- *
+/*
  * This is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 3, or (at your option)
@@ -122,7 +121,7 @@ VNA_SHELL_FUNCTION(cmd_load)
 VNA_SHELL_FUNCTION(cmd_attenuate)
 {
   if (argc != 1) {
-  usage:
+//  usage:
     shell_printf("usage: attenuate 0..31|auto\r\n");
     return;
   }
@@ -146,12 +145,23 @@ VNA_SHELL_FUNCTION(cmd_level)
   set_level(f);
 }
 
+VNA_SHELL_FUNCTION(cmd_sweeptime)
+{
+  if (argc != 1) {
+    shell_printf("usage: sweeptime 0.03..600\r\n");
+    return;
+  }
+  float f = my_atof(argv[0]);
+  set_sweep_time(f*1000.0);
+}
+
+
 
 
-VNA_SHELL_FUNCTION(cmd_levelsweep)
+VNA_SHELL_FUNCTION(cmd_levelchange)
 {
   if (argc != 1) {
-    shell_printf("usage: levelsweep -76..+76\r\n");
+    shell_printf("usage: levelchange -70..+70\r\n");
     return;
   }
   float f = my_atof(argv[0]);
diff --git a/ui.c b/ui.c
index b0bb6d7..431b8aa 100644
--- a/ui.c
+++ b/ui.c
@@ -123,7 +123,7 @@ void ui_mode_normal(void);
 //static void ui_mode_menu(void);
 static void ui_mode_numeric(int _keypad_mode);
 static void ui_mode_keypad(int _keypad_mode);
-static void draw_menu(void);
+// static void draw_menu(void);
 static void leave_ui_mode(void);
 static void erase_menu_buttons(void);
 static void ui_process_keypad(void);
@@ -1721,7 +1721,7 @@ menu_apply_touch(void)
   ui_mode_normal();
 }
 
-static void
+void
 draw_menu(void)
 {
   draw_menu_buttons(menu_stack[menu_current_level]);