diff --git a/t/selenium/testrun.py b/t/selenium/testrun.py
index a4da638cea..82505a7e15 100644
--- a/t/selenium/testrun.py
+++ b/t/selenium/testrun.py
@@ -82,7 +82,7 @@ class testrun(unittest.TestCase):
         logout_panel(driver)
         login_panel(driver, adminname, 'administrato')
         print("OK")
-        print("Go back to administrator login", end="")
+        print("Go back to administrator login...", end="")
         logout_panel(driver)
         login_panel(driver)
         driver.find_element_by_xpath('//*[@id="q-app"]//div/aside/div/div[2]//div[contains(., "Settings")]').click()
@@ -118,6 +118,51 @@ class testrun(unittest.TestCase):
             len(driver.find_elements_by_xpath('//*[@id="q-app"]/div//main//div/a[contains(., "Add")]')) == 0, "'Add' Button is still there")
         driver.implicitly_wait(10)
         print("OK")
+        print("Go back to administrator login...", end="")
+        logout_panel(driver)
+        login_panel(driver)
+        driver.find_element_by_xpath('//*[@id="q-app"]//div/aside/div/div[2]//div[contains(., "Settings")]').click()
+        driver.find_element_by_xpath('//*[@id="q-app"]//div/aside/div//a[contains(., "Administrators")]').click()
+        print("OK")
+        print("Try to enable 'Superuser' for administrator...", end="")
+        wait_for_invisibility(driver, '/html/body//div/main//div/label//div/input[contains(@class, "q-field--disabled")]')
+        WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, '/html/body//div/main//div/label//div/input')))
+        fill_element(driver, '/html/body//div/main//div/label//div/input', adminname)
+        self.assertTrue(
+            len(driver.find_elements_by_xpath('//*[@id="q-app"]/div//main/div//table/tbody/tr[1]/td[contains(., "' + adminname + '")]')) > 0, "Administrator was not found")
+        wait_for_invisibility(driver, '//*[@id="q-app"]/div//main//div/table/thead/tr[2]/th/div[@role="progressbar"]')
+        driver.find_element_by_xpath('//*[@id="q-app"]/div//main//div//table/tbody/tr[1]/td[16]/button').click()
+        WebDriverWait(driver, 10).until(EC.visibility_of_element_located((By.XPATH, '/html/body//div/a[contains(., "Edit")]')))
+        driver.find_element_by_xpath('/html/body//div/a[contains(., "Edit")]').click()
+        WebDriverWait(driver, 10).until(EC.visibility_of_element_located((By.XPATH, '//*[@id="q-app"]/div/div[2]/main/div[1]/form/div/div[2]/div/div[1]/div/div/div[1]')))
+        driver.find_element_by_xpath('//*[@id="q-app"]/div/div[2]/main/div[1]/form/div/div[2]/div/div[1]/div/div/div[1]').click()
+        time.sleep(1)
+        driver.find_element_by_xpath('//*[@id="q-app"]/div//main/div//button[contains(., "Save")]').click()
+        wait_for_invisibility(driver, '//*[@id="q-app"]/div//main//div/table/thead/tr[2]/th/div[@role="progressbar"]')
+        driver.find_element_by_xpath('//*[@id="q-app"]/div//main/div//button[contains(., "Close")]').click()
+        wait_for_invisibility(driver, '/html/body//div/main//div/label//div/input[contains(@class, "q-field--disabled")]')
+        print("OK")
+        print("Check if 'Superuser can still see entries with 'Read-only' also enabled...", end="")
+        logout_panel(driver)
+        login_panel(driver, adminname, 'administrato')
+        driver.find_element_by_xpath('//*[@id="q-app"]//div/aside/div/div[2]//div[contains(., "Settings")]').click()
+        driver.find_element_by_xpath('//*[@id="q-app"]//div/aside/div//a[contains(., "Customers")]').click()
+        wait_for_invisibility(driver, '//*[@id="q-app"]/div//main//div/table/thead/tr[2]/th/div[@role="progressbar"]')
+        driver.implicitly_wait(1)
+        self.assertTrue(
+            len(driver.find_elements_by_xpath('//*[@id="q-app"]/div//main//div/a[contains(., "Add")]')) == 0, "'Add' Button is still there")
+        driver.find_element_by_xpath('//*[@id="q-app"]//div/aside/div//a[contains(., "Contacts")]').click()
+        wait_for_invisibility(driver, '//*[@id="q-app"]/div//main//div/table/thead/tr[2]/th/div[@role="progressbar"]')
+        driver.implicitly_wait(1)
+        self.assertTrue(
+            len(driver.find_elements_by_xpath('//*[@id="q-app"]/div//main//div/a[contains(., "Add")]')) == 0, "'Add' Button is still there")
+        driver.find_element_by_xpath('//*[@id="q-app"]//div/aside/div//a[contains(., "Domains")]').click()
+        wait_for_invisibility(driver, '//*[@id="q-app"]/div//main//div/table/thead/tr[2]/th/div[@role="progressbar"]')
+        driver.implicitly_wait(1)
+        self.assertTrue(
+            len(driver.find_elements_by_xpath('//*[@id="q-app"]/div//main//div/a[contains(., "Add")]')) == 0, "'Add' Button is still there")
+        driver.implicitly_wait(10)
+        print("OK")
         print("Go back to administrator login", end="")
         logout_panel(driver)
         login_panel(driver)