diff --git a/app/Traits/WithUserSelector.php b/app/Traits/WithUserSelector.php
new file mode 100644
index 0000000..f05a0f5
--- /dev/null
+++ b/app/Traits/WithUserSelector.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace App\Traits;
+
+trait WithUserSelector
+{
+    public function selectAllUsers()
+    {
+        $this->form->user_ids = array_keys($this->users);
+    }
+
+    public function deselectAllUsers()
+    {
+        $this->form->user_ids = [];
+    }
+}