Hi,

By default the Cash in/out button is visible to only Point of Sale Administrator group, and this is handled by the field group_pos_manager_id. This field is invisible field in Point of Sale configuration model (pos.config).

If you want to force the PoS users also able to use this Cash in/out button, you can try by making the field group_pos_manager_id visible in pos.config model, and replace the PoS administrator group with Point of sale/User group in that field.

If so you can configure by each point of sale
Hope this will work for you

Thanks & Regards

Metalinks