How to approve invoices if the button is missing in BUSY?

The functionality you described appears to be related to the approval or rejection of vouchers or masters within a software application. Here's a breakdown of the steps:
Step 1 :This is the starting point where you view a list of vouchers or masters that are awaiting approval or rejection.
Step 2 :You have the option to select one or more vouchers or masters from the list. It's common to use checkboxes or a multi-select feature to choose the items you want to approve or reject.
Step 3 :Pressing the  key triggers an action in the software, in this case, to approve or reject the selected vouchers or masters.
Step 4 :After pressing , a message box appears with two options: "Approve" and "Reject." You need to choose one of these options based on whether you want to approve or reject the selected items.
Step 5 :Once you select "Approve" or "Reject," another window appears where you may be prompted to specify 'Y' to confirm the action. You can also provide remarks or comments explaining the reason for the approval or rejection.
Step 6 :After specifying 'Y' and providing remarks, the software will proceed to approve or reject the selected vouchers or masters based on your input.
Step 7 :If you have multiple vouchers or masters to approve or reject, you can select all the items you want to process and then press  to perform the action in bulk.