AOIA

You can get this 3rd party utility at https://sourceforge.net/projects/aoiaplus/

Once installed and configured correctly, it already helps you to list and search items through all your backpacks.

But it has also a very nice feature for raid bosses remains :

When a boss dies, as you open its loot window, AOIA should be able to extract all its items instantly & be ready to send them to your raidbot.

All you have to do then is this command :

/loot botname mloot

(Note : you must be at least !leader on botname indeed)

You'll obtain 1 or several link(s) to click once each to automatically send items to roll in your raidbot.

After this importation, let your raiders !add and then you can !result as usual.

What a time saver !