File:
New | Clear the terrain and track to start new
Open Track | Open a track file
Save Track | Save the current track file

Edit:
Undo | Undo the last terrain modification

Markers:
Auto-Smooth | Toggle Auto-Smoothing on and off
Marker Size 1 | Set the marker effect area size to 1
Marker Size 2 | Set the marker effect area size to 2
Marker Size 3 | Set the marker effect area size to 3
Marker Size 4 | Set the marker effect area size to 4
Marker Size 5 | Set the marker effect area size to 5

Area Tools
Smooth Area | Smooth the marked area
Erode Area | Erode the marked area
Flatten Area | Flatten the marked area
Mark Area | Set area between Primary markers as Primary

Tools
Make Walkway | Convert primary markers to a walkway
Make Waterway | Convert primary markers to a waterway (river/lake)
Apply Filter | Apply a filter to the terrain (either to area or full terrain)
Convert Primary Markers | Convert primary markers to secondary markers
Unselect All Markers | Unselect all markers