How to print GST compliant invoices and bills in BUSY?How do I download my GSTR- file?

To print GST invoices from BUSY, you need to follow these steps:
 Step 1: Go to the Transaction menu and add a sale voucher with all the necessary details, such as date, invoice number, party, item, tax, etc.
 Step 2: After saving the invoice, a print window will pop up. You can select Yes on this window and print the invoice. 
 Step 3: If the print window does not appear, you can either click on the Print button or press ALT+P to print the invoice.
 Step 4: You can also print the existing saved bill or invoice by open it and give print command.
 The process you need to follow to download GSTR1 in BUSY for reconciliation.
 Step 1: Open the Administration menu and select Configuration.
 Step 2: Choose Features / Options and then GST / VAT. 
 Step 3: Enter your GST portal username in the GST Portal User Name field and save it.
 Step 4: Next, open the Transaction menu and select GST Misc Utilities.
 Step 5: Choose Download GSTR JSON Data and select Download GSTR1
 Step 6: Now click on the download button along with the month and verify with the OTP.
 Note: Please ensure the API access is enabled on GST portal to receive OTP.