Hi again! I ended up creating a list of footprints using the “Data.Remember” node. In my graph, I calculated the area of the building outside the lot boundaries I have. The area out will be later a constraint in the generative design study, where area out should be = 0, and the goal would be to locate the building minimizing the area out. However, since I used a list for buildings’ footprints at the beginning of my graph, the output (area out) consists of a list of values. When I checked the issue in Generative Design, I got an issue saying that I should only use output nodes of type “float” or “integer”. “Lists are not supported”. I wanted the Generative Design Study to generate/test the different buildings’ footprints I have, each on its own and return the corresponding “area out” for every possible option. But this is not what it’s doing now. Can anyone help me fix this issue? Thanks in advance!