Point, click, and select any layer you can see. Smart Selector sees through bounding boxes, adjustment layers, precomps and layer transparency to find the select layers using the most advanced layer selection algorithm. Welcome to the new way of working in After Effects.
https://aescripts.com/smart-selector/
Would be nice to know if Smart Selector also runs in CS5.5 (even if it's not officially supported)...
The last thing I wish to do is fiddle around beyond having set up my layers in a composition. Quickly identifying and editing layers should be easier than this.
Looking at Compatibility (above), It would seem Smart Selector hasn't been updated in three years.