Hi Poleg,
Welcome to the forums! It sounds like you’d like to create a shopping cart function in Axure RP using two repeater widgets. While this example was originally created in Axure RP 7, this tutorial and example file that Anthony posted may help:
In that example, one repeater is being used for the shopping cart and another is being used for the product listing, and items (repeater rows) are being added from one repeater to the other. Note that Anthony does include an extra bit about creating a “Drag to Add” functionality, but these steps are optional.
The process for setting up this type of interaction can be a little involved, so please let me know if you have any questions!