Making a termbase the default termbase
The default termbase is the focus of MultiTerm. Anything you do that involves the termbase is applied to this termbase. For example, if you want to add a termbase entry, it will be added to the active termbase. The default termbase is important because it is the only termbase which can be browsed.
About this task
You can have several termbases open at the same time, but only one of them will be active as the default termbase.