Within the Beaver Builder editor open the module/column/row for editing by clicking the wrench icon.
Within the Beaver Builder widget panel select the Advanced tab.
Navigate to the Visibility tab and expand it if necessary.
Ensure the required module/column/row display to be used with this condition has been specified as detailed here:
From the Control mode drop down ensure Conditional is selected.
From the Display if the conditional evaluates drop down select whether the conditional needs to evaluate as True or False to display the block.
From the Conditional drop down select the required conditional to be evaluated.
Active conditionals are shown in the drop down with the suffix of (publish).
Once the settings have been completed ensure Save is clicked to save the configuration.