Trails are the visible representation of tweak paths and values, whether distance or angular. You can control aspects of trails.
Trails are generated at the time the tweak action is recorded and can be visible immediately or selectively displayed later. Because Trails represent Tweaks, during the edit process you can use trails to edit tweak values.
Tweak Components.
Move or
Rotate.
Locate and select a face or edge orientation reference.
Add Trails and select the trail origin position. Use
Delete Trails to remove the default trail.
Duration to specify the tweak timing.

You can modify the tweak distance or angle by editing the visible tweak trail in the graphics area.
To modify trail visibility
To modify the tweak distance using the trail