I always bind the least used skill (like ult/buff/aura) on Left Mouse Button and I move by Force Move on keyboard to left click as rare as possible. And still it is too much with all inventory and item management.
They should have add LMB rebinding years ago 
Can’t wait for pad support too. I hope that PS4 pad will work with this touchpad to simulate mouse. Would be great for item management.
If not I will play dungeons/fight/exploration on the pad and towns/inventory on M&K