shop all organisation

Hi,

Currently I can't find a way to shuffle or rearrange the order my products display in if someone clicks on shop all.

I, and my customers, really don't like the fact it's just whatever I most recently uploaded because it's usually all the same design. Would be nice if I could click shuffle and it orders them randomly. 

Anyone know if this is possible or some other alternatives? I'm losing a lot of conversions to this.

I also need a solution for shuffle products.

Or how can I move selected products at once instead of one by one in categories.