Octopus basic visulaization

Hello,

I am new to Octopus and I like to know how to visualise brep/mesh in Graph as it is shown in shape search video https://www.youtube.com/watch?v=SlyXJEO76BI. All I see is boxesn in the graph which converges later and I like to know how visualise the brep optimization process in the graph. I tried connecting brep to Phenotype input too but nothing works. Please help me with this.