VueDraggable - How Can We Be Able To Switch Items From Two Different Parameters?

[This will be an update to this question][1] since we have the same problem but mine I want to be able to switch items from two different parameters. Currently I can only be able t

Solution 1:

For Example. If you selected an item on this.item1 create a condition if it exist on the other array. If it doesn't then it should be moving it to this.item2.