You can change a smart object layer's Object transform. You can not change a Smart object pixels with photoshop tools. You may be able to use content aware tool on empty layers above the smart object layer when there the sample all layer option so it can use the smart object Layers that are the result of the Smart Object Layer's Object transform and Smart filters adder add the the smart object layer. To work none destructive you must use layers. Once you start using Layers Lightroom is out of the Picture. Lightroom does not support layers. I do not install Lightroom I'm not organized need no liberty system Bridge and Windows File explorer is all I need. I do not need more then one RAW conversion interface and now Adobe radically changes ACR interface Thanks a lot Adobe!