WOW, I was so ready to say - RTFM, BUT then I checked & you're right it is NOT in the manual!!!
My apologies.
I will do a proper manual change asap but for now, here is the quick answer :
1. In 4POSbackoffice - Stock create / edit - Amend stock item by detail - Double click on Eg. T-Bone
2. On Print Location (Bottom left) click on the square with 3 dot & click on NEW for New print location.
3. Give it a name Eg. BAR (Uppercase is better)
4. On the lower part of the screen - put a tick on the printer you wish this print location to print to. In this example your receipt printer - let's assume it is called SLIP.
5. Click on SAVE! (Only place in 4POS where you have to save something........)
6. Do an Update point-of-sale as normal.
7. Wait for the update to go through to the 4POSTouch & TEST!
That's it - once you have successfully tested this - in the 4POSOffice you must then edit your other products to have the same Print Location.
You can use the same steps at the top to create a printer to print your BAR orders.