Basic: provides the minimum controls and metering – Metric Halo TransientControl User Manual
Page 7

Operation
7
This button switches TransientControl's user interface mode. There are three modes available:
Figure 2.4: Basic: Provides the minimum controls and metering
Figure 2.5: Basic with process metering: Adds process metering
Figure 2.6: Advanced with process metering: Adds access to the advanced envelope controls