Every time I copy multiple textures to my inventory they all open in my client. The other day I bought a texture viewer that included 1100 textures, and I wanted to remove them to have an empty viewer... with a view to having a separate viewer for different types of textures etc.. sorry I need to organise myself

Anyway, they all opened of course, when I copied them to my inventory! Same when I grabbed some freebie boxes from Yadni's - this was only 108 textures, but still they all opened up in my client.
SO, how can I:
Stop them opening when I copy them to my inventory
OR
Is there a "Close all windows" type command that I have totally missed?
thanks in advance
Mabb