I installed ClickUp over the weekend to give it a whirl, but it seems like managing sub-projects is difficult. I have multiple projects on the go for each of my

I installed ClickUp over the weekend to give it a whirl, but it seems like managing sub-projects is difficult. I have multiple projects on the go for each of my clients, and I couldn't figure out how to go more than one level deep. Any tips? It otherwise looks awesome.