Complex sentence: Bars can be suspended from them to secure additional spotlights, props, curtains, etc. Also the 7500 kg steel and glass upper reflector, or "cloud", over the stage can be raised and lowered according to the demands of different stage variations.
Split into simpler sentences: Bars can be suspended from them to secure additional spotlights, props and curtains. The 7,500 kg steel and glass upper reflector, or "cloud", over the stage can be raised and lowered according to the demands of different stage variations.