Select elements that are offset from Level

Is there a way to use Dynamo to select elements (all categories) on a certain level that have a base/level offset value of greater than zero?

Hello, you can select elements by a parameter value, see here:
http://dynamobim.org/forums/topic/selecting-model-elements-based-on-parameter-value/
But for further advice, you will need to send at least a screenshot of your graph