yes it works

MiraAPI.Example/Buttons/TestButton.cs

@@ -0,0 +1,27 @@
+using MiraAPI.Example.Modifiers;
+using MiraAPI.Hud;
+using MiraAPI.Modifiers;
+using MiraAPI.Utilities.Assets;
+using Reactor.Utilities.Extensions;
+using UnityEngine;
+
+namespace MiraAPI.Example.Buttons;
+
+[RegisterButton]
+public class TestButton : CustomActionButton
+{
+    public override string Name => "Test Button";
+    public override float Cooldown => 0f;
+    public override LoadableAsset<Sprite> Sprite => ExampleAssets.ExampleButton;
+
+    protected override void OnClick()
+    {
+        var randomPlayer = PlayerControl.AllPlayerControls.ToArray().Random();
+        PlayerControl.LocalPlayer.RpcAddModifier<ModifierParams>("test", 1, randomPlayer);
+    }
+
+    public override bool Enabled(RoleBehaviour? role)
+    {
+        return true;
+    }
+}