Salem

I am sure this has been asked before, anyway, how do I add items to a stockbin quickly? I can get them out by ctrl+left click, but nothing I have tried works for loading

Shift+Alt+Left Click, or maybe just shift left click.

shift+left on the stockbin dialog puts 1 item from your inventory in, shf+alt+left on the dialog puts all items from your inventory in.

None of the 2 shortcuts works. A few years ago I used Ender's client, which had better support for this, is it still allowed?

Indeed, the stockbin shortcuts will only work in custom clients (originally implemented by Ender). I think at this point everyone assumes you are using a custom client to begin with

I have just picked up the game after a long leave, I should get a custom client ASAP then.

Thanks