Unable to add a workflow step in "Business Application Studio"

Hi Team,

I have generated an MTA shell, a workflow module and workflow definition using the "yoeman/yo" in the cli. I have a few observations on the new workflow definition and I see the following things are missing on the generation (highlighted in yellow) -

In addition, I see the "Start Events" and "End Events" are missing too. Also I am not able to add anything from the palette on the left hand side. Can anyone help here on what I am missing?

All the best,

Tanmoy