Issue with object selection and layer identification (Paid Version)

Hello CAD Reader Support Team,

I am contacting you regarding an issue I am having with the software. I recently purchased the Paid Version.

I am trying to identify which layer specific objects (detectors) are located on, but I am facing the following problems:

1. Selection Issue: My cursor appears as a large crosshair. When I click and drag, it creates a selection square, but it does not select the objects (detectors) inside it.
2. Properties Panel: Because I cannot select the objects, the "Properties" panel remains empty (dropdown with no values), so I cannot see the layer information.
3. Layer Management: I have about 300 layers in my file. I need to find the specific layer for these detectors, but I cannot identify it without selecting the object.