Get all the "name" values in properties

Hi,

I am new to ReadyAPI and wanted to ask if there is a way to get all the Names in the Properties table (circled below)- so not the Values, e.g. the 1, 2, 3, 4 etc... as an array or list so that I can iterate through them through a for loop later on a Groovy script but I am not too sure how to do this? All I have found is getting the Values in the Properties table.

 Thanks