Steps to reproduce:
1. Create a new Unity project
2. In Hierarchy window right-click on “SampleScene”
3. From the menu select “Add New Scene”
4. Create multiple Scenes in the Hierarchy window (for example, 1.scene, 2.scene, 3.scene, Untitled.scene)
5. Select created Scenes in Hierarchy window
6. Try deleting them 

Actual results: Unable to delete multiple selected Scenes in the Hierarchy window

Expected results:  Able to delete multiple selected Scenes in the Hierarchy window

Reproducible with versions: 6000.3.1f1, 6000.4.0b1, 6000.5.0a3
Can’t test with versions: 6000.0.64f1, 6000.2.15f1 (Old Hierarchy, which allows deleting multiple selected Scenes)

Tested on (OS): macOS Tahoe 26.1 (M1)