Tick Box for "Show Items Located in Another Device" Option

Can the "show items assigned to another device" text be changed to a permanent tick box on the main picking screen?

Currently, once the "show items assigned to another device" option has been selected, it remains active until the user either completes the transaction, or returns to the home screen. As it is just a piece of text, it is not clear that the "show items assigned to another device" text is actually a button and if the option has already been selected if this text isn't displayed. With an active tick box, the option can then be freely active or disabled by the operator during the picking process.

Further to this, could all line items have a icon/flag on them related to being in stock in multiple devices? Currently, the operator has to select an item that shows "0 in stock", which is counter intuitive, leading operators not to realise the item is available in another machine(s). If there could be a flag/icon on each line item if it is available in more than 1 location, this can prompt the operator to search this item in the other machine(s), or select the "location" icon even when an item shows out of stock on the current device.