Please watch the video,
https://drive.google.com/file/d/1zbLQUkhFbhny51vH_DdS6-oyWcnzIW-U/view?usp=drivesdk
or download from here
https://hashtech.center/dl/video/howtomarkpayment_fromonesystem2anotherwhmcsastpp.mp4
Basic Using of KB can be find here.
https://drive.google.com/file/d/1DeBAlbb0_L8VzynnYIDpJ8aDS7Y4voLd/view?usp=drivesdk
