.. way to put that drain into the collection so I can use it in any project...

In the third menu in the [font=courier new]Import Furniture dialogue[/font] (or just drag and drop a file into the 2D pane), there is an option [font=courier new]Add to catalog[/font] which will add the imported model to your collection. You can also create your own library with the Furniture Library Editor (see Download/other). ok

PS For a copied/pasted model, export as .obj and import again. Copyright and licence information disappear in the export/import, which is fine for my drain, but is not advisable for other models without permission from the copyright holder.