Multiple select

I would like to thank you for this life saver module. This has been great enhancement to administrative tasks.

I have a feature request if you don't mind.

Currently the selection only allows all or single select.

It will be a great addition, if we can select multiple blocks via select box as opposed to "Add this link to all blocks".

The reason is some blocks are sometimes containing related content types, say slideshow. When we have multiple blocks of different contents of slideshow across site, selecting multiple blocks will save instances of CCL into one.

Thanks for considering this.