*This setup needs to have SUPER POS User right in "Retail User Setup"

Method 1 - Step into the POS and change the button property (function) directly,

Right-click the button, select "Button Properties"

1, Assign Tender

Command = TENDER_K

Parameter = Tender Type Code

2, Assign Item 

Command = PLU_K

Parameter = Item Code

3, Change Qty / Price / Discount

User can search the Command and look at the description 

Method 2 - Edit the button properties for a specific menu

1, Right click the button and select "Menu Properties"

2, Look at what the POS menu is using

3, Search the POS Menu in LS central

4, Add / Edit the button with command