I must be doing something dumb again!
I am trying to create a collection for my models in EW. When I click on the Collections tab I get an option to Create Collection. If I click on that, I am taken to the page where you select a model or collection and not to the dialog box I would expect and as shown on this help page https://help.sketchup.com/en/article/3000257.
Assuming there is a simple way to navigate to the right place, I guess I will be able to make a new collection. If I want to add items from those already uploaded, do I have to do it one by one or can you select a bunch and add them in one hit?
So, my questions are:
How to get to the create collection page/dialog box;
How to batch select for inclusion in a collection.