I want to enable e-way bill generation for specific BUSY series only. How can I do that?

If you want to generate E--waybill directly from portal please follow these steps:
 Step 1: Go to administration menu and then select configuration from it.
 Step 2: Then select feature and option and then click on GST/VAT option.
 Step 3: Then search for e way bill required option and mention Y in it and then click on configuration button to configure it.
 Step 4: Mention all necessary details in configuration field like from place and pincode and make sure to save the configuration.
 Step 5: Open your e way bill portal and login e way bill portal by using e way bill credentials
 Step 6: Then navigate to the left hand side and click on Registration and select for GSP option from it. 
 Step 7: After that you will receive OTP from e way bill portal on registered email and mobile no and then provide the OTP and then proceed for next window.
 Step 8: Click on add button on Top menu and select the GSP named webtel electrosoft pvt ltd and create the user name and password and click on save button.
 Step 9: Repeat the step 8 for creating the GSP user name and password for pinnacle finserv advisors private limited.
 Step 10: Mention the GSP credentials in the BUSY GST/VAT configuration and make sure to click on save button.
 Step 11: Go to administration menu and select configuration from it.
 Step 12: Then select voucher series configuration and then select the relevant voucher and specific series and then click on voucher configuration button.
 Step 13: Then navigate to input transport details, generate e way bill after saving option and mention Y in it and click on save button to save the configuration.
 Step 14: Modify the voucher for which you want to generate the e way bill and resave it, BUSY will ask you do you want to geneate the e-waybill yes or no. click yes and generate it.