Most of us only use Advanced MPA to view BT activities when we’d like to see what the chart looked like before the signature was adjusted. No action is required.
Many of us have never used lock. It’s an advanced function for manual adjustment.
You are more likely to use the flag function on occasion.
Flagging Activities – Xert (baronbiosys.com)
What is Advanced MPA? – Xert (baronbiosys.com)
Fitness Improvement and Day-to-day Variation – Xert (baronbiosys.com)