Change image of inventory item

I have read quite some hours about this problem, but maybe the new version offers a better solution. 

i want to change the image of the inventory item as soon as it gets clicked in the inventory with an empty image. (i use a command-cursor instead of a dragged item, because it suits the game better.) removing the item and adding a new (empty) one is not possible, because it doesnt get the same position. (new items seem to always be added at the last position.) 

is there a way to change to change the image? i have read about the activeanimation command with lua, but how can i control the animation? the inventory-item-animations dont show up in the "play animation" action parts.

thanks for any advise. :-)