add access_name to form

_debug_replacements.php

@@ -92,4 +92,5 @@ return [
 
 	'theme' => 1,
 	'pwlock' => 1,
+	'access_name' => 'espterm',
 ];

lang/en.php

@@ -185,6 +185,7 @@ return [
 	'system.new_access_pw' => 'New password',
 	'system.new_access_pw2' => 'New pass., repeat',
 	'system.admin_pw' => 'Admin password',
+	'system.access_name' => 'Username',
 
 	'system.change_adminpw' => 'Change Admin Password',
 	'system.explain_adminpw' =>

pages/cfg_system.php

@@ -47,6 +47,11 @@ $NOFILL = 'readonly onfocus="this.removeAttribute(\'readonly\')" style="cursor:t
 		</select>
 	</div>
 
+	<div class="Row">
+		<label for="access_name"><?= tr('system.access_name') ?></label>
+		<input type="text" name="access_name" id="access_name" value="%access_name%">
+	</div>
+
 	<div class="Row">
 		<label for="access_pw"><?= tr('system.new_access_pw') ?></label>
 		<input type="password" name="access_pw" id="access_pw" <?=$NOFILL?>>