backup of databases - consistently back up databases with control of log truncates
VEBF appears to be a desktop/workstation backup software, and doesn't (directly) support any capability for SQL server, except for backing up SQL BAK files you have already created via a SQL native backup.

Are you talking about Veeam Explorer for Microsoft SQL Server?

If your databases are in Simple mode, you don't need to do anything to "control your log truncates". When transactions complete, SQL will automatically re-use that portion of the transaction log. If you are somewhat impatient, you can issue a "checkpoint", but that really shouldn't be necessary.