It's almost always easier to add a child asset to a parent one - we suggest doing that where possible.
However, if you don't already have an asset as a parent, you can use the insert control to add one.
WARNING - If your asset already has a parent in the same relationship you're trying to add, this technique will insert a new asset between the existing parent and the selected asset.
If the asset doesn't have a relationship of the type you're looking for…
Then…
And your asset is now attached.