As soon as one or several elements are selected, you can create a composition as follows:

  • Using the context menu (Ctrl-Click) - "Create Composition"
  • Using the "Edit" window menu - "Create Composition"
  • Using the "Ctrl + C" keyboard shortcut

You can recognise the composition because the previously selected elements are now displayed with a red frame when selected (1). The selected elements are summarized in the layer list and moved to the newly created composition. The new composition is called "New Composition" (2).

You can find out how to edit this composition   here  .