diff --git a/js/templates/instance/filter-users.html b/js/templates/instance/filter-users.html
index cf3007d..103875b 100644
--- a/js/templates/instance/filter-users.html
+++ b/js/templates/instance/filter-users.html
@@ -5,18 +5,19 @@
 		<input type="text" name="preset_name" placeholder="Preset name" value="Undefined"/>
 	</div>
 	<div class="input">
-		<label for="profile">Profile query:</label>
+		<label for="profile">Profile content:</label>
 		<input type="radio" id="profile-search-type-simple"
 			name="profile_search_type" value="simple" checked
 			/><label for="profile-search-type-simple">simple</label>
-		<input type="radio" id="profile-search-type-query"
-			name="profile_search_type" value="query"
-			/><label for="profile-search-type-query">query</label>
+		<input type="radio" id="profile-search-type-expr"
+			name="profile_search_type" value="expr"
+			/><label for="profile-search-type-expr">expr</label>
 		<input type="radio" id="profile-search-type-empty"
 			name="profile_search_type" value="empty"
 			/><label for="profile-search-type-empty">Empty</label>
 		<br class="sep"/>
-		<textarea name="profile" type="text" style="width: 100%"
+		<textarea name="profile" type="text"
+			style="width: 100%; min-width: 24em; min-height: 6em"
 			placeholder="Input your text here"></textarea>
 	</div>
 	<div class="input">
diff --git a/views/instance.php b/views/instance.php
index 5c4247e..44e535c 100644
--- a/views/instance.php
+++ b/views/instance.php
@@ -62,9 +62,26 @@ window.view.instance = {
 		filter_users: function() {
 			E.http_template('instance/filter-users', function(html) {
 				E.element('#window-instance #container').innerHTML = html;
+				E.elemid('profile-search-type-simple').onchange = function(e) {
+					if (e.target.checked) {
+						E.element('textarea[name="profile"]').setAttribute('placeholder', 'Input your text here');
+						E.element('textarea[name="profile"]').removeAttribute('disabled');
+					}
+				};
+				E.elemid('profile-search-type-expr').onchange = function(e) {
+					if (e.target.checked) {
+						E.element('textarea[name="profile"]').setAttribute('placeholder', '(words "apple banana" AND contains "i like apples") OR words "pineapple strawberry"');
+						E.element('textarea[name="profile"]').removeAttribute('disabled');
+					}
+				};
+				E.elemid('profile-search-type-empty').onchange = function(e) {
+					if (e.target.checked) {
+						E.element('textarea[name="profile"]').setAttribute('placeholder', '<Profile content is empty>');
+						E.element('textarea[name="profile"]').setAttribute('disabled', 'disabled');
+					}
+				}
 				E.custom.btncollapse_render();
 			});
-			console.log('aaa');
 		},
 	},
 	load_content: function(content, hashload) {