Civil3D - Prompt User To Select Objects

My script is so close to being perfect! Thanks @mzjensen for helping resolve this issue. However, I just have a quick question on Dynamo Player. I am now able to refresh the Select Option but the output is greyed out. I know the script works because it runs fine in the Dynamo Watch Node. I have followed the steps as identified in this thread:

(Meaning, I have set the watch node as “Is Output” and Renamed the Watch Node.) However when I try to run in Dynamo Player the result tab is greyed out as shown here:

Thanks for any help!