If you wants to use second language like hindi in BUSY,you need to first download and install hindi google input tool online from browser like chrome.Then after installing it,open BUSY software in your system and follow these steps
Step 1 Open your company
Step 2 Go to administartion and then configuration
Step 3 Select feature/options and Select GENERAL tab
Step 4 Now enable second language support option as at right side of general tab options
Step 5 In specify language,select hindi as it will pick if input tool for hindi is installed and then save the changes
Step 6 Now second language hindi will be configured in your company and it can be used while on invoice printing also