6
There should be option to select the multiple line items in the cart and apply line discount or percent in one go all the lines. Same is applicable for adding the item comment (line item comment), price override, set quantity and other features.

This will be very helpful in streamlining the time taken by cashier in store.

Earlier in AX 2012 R3, it was supported out of box but in Dynamics 365 for Retail CPOS / MPOS, it has been depreciated,
STATUS DETAILS
Declined
Ideas Administrator

Thanks for the idea. Unfortunately this is not currently aligned with our product roadmap so we are marking it as Declined. - Boyce Zhu, Principal Product Manager for Dynamics 365 Commerce