Yes, the tabs can only display in a single row.
We are presently working on a new interface for version 4.0. I can't say at this time if multiple rows will be available with it, but we will look into it.
Developer, Bible Analyzer
But to him that worketh not, but believeth on him that justifieth the ungodly, his faith is counted for righteousness. (Rom 4:5 AV)