Grouping/merging projects

I have built 2-3 different projects by now, and I’d like to put them into one large project to use these features together. From my research, I should put them into a container and save this container as a .torx file to load in another project.

My issue is that I can’t drag and drop all of my operators into the container: it only seems to let me drag and drop one operator at a time. I’ve tried selecting all my operators, then dragging and dropping them. I’ve also tried dragging and dropping them one by one. Any advice?

You can group select and copy/paste them into there. But where are the nodes currently located? Are they not already in a container you can safe (one level up). By default the projects are made in a container called ‘project1’ that you can save out (and rename fix)