100% this is necessary. It has been also a while ago in this thread.
https://community.smartsheet.com/discussion/108371/expand-collapse-by-one-step?_gl=1d24v65_gcl_auNzAwNTU1ODcwLjE3MTg1OTY3MDE._gaMTM0NTI5MTI5MC4xNjg4OTY5ODM5_ga_ZYH7XNXMZK*MTcyMjIyMjE5Ni45OC4xLjE3MjIyMjIyMTIuNDQuMC4w