Development Update:Heres a screenshot of the new Preset Management System that is in development.

The icons will be pictures of the preset itself, eg. for a model type it will show the model being used. For lights, it will indicate what Light type it is aswell as the color of the light.
The Panel on the left, shows all the preset libraries that are in the resources or in a projects resources which is automatically scanned on first opening of the dialog or when the refresh libraries button is pressed.
Each preset will store its own description which will allow you to leave more detailed notes on a particular preset, as you may have multiple presets the same, e.g. different size meshes, different coloration's, Different actions applied.
The Preset Libraries in the tree will be able to be placed into folders for better organizing. These folders arent used for anything other than organizing your libraries. eg. Have a props folder with crates.xPreset and Barrels.xPreset to keep them in the same place. These folders will load and save with the editor to always keep your presets organised.