Folders in Assembly file question

If you accidently drop a part into a folder, how do you remove it?

 

Grab it and drag it over to the left until the cursor changes, then drop it
there.

WT

 

You might want to make sure to hold the alt key so as to avoid
dropping it inside a subassembly

Respect

 

You might want to make sure to hold the alt key so as to avoid
dropping it inside a subassembly

Respect