Updated Heightmap customization (markdown)

Heightmap-customization.md

@@ -18,16 +18,25 @@ Once you are satisfied with the Heightmap, click on "Complete". To minimize the
 
 ### Free Draw brushes
 
-* Brush power - slider to control power of brushes below
-* Elevate (↥) - increase cell height
-* Depress (↧) - decrease cell height
-* Align (=) - fit cell's height to the first tagged
-* Smooth (~) - smooth cell height by taking average of its neighbors
-* Hill (H) - a round blob
-* Pit (P) - a round depression feature
+* Brush height (H; left slider) - slider to control Height value for brushes below
+* Brush radius (R; right slider) - slider to control Radius for non-feature brushes
+* Hill (H) - a round blob, drag the map for continuous placement
+* Pit (P) - a round depression, drag the map for continuous placement
 * Range (R) - an elongated blob, click once to set a start point, the second click to place a Range
-* Trough (T) - an elongated depression feature, works as Range
-* Smooth (≈) - smooth all cells
+* Trough (T) - an elongated depression, click once to set a start point, the second click to place a Trough
+* Elevate (↥) - increase cell height, drag the map for continuous usage
+* Depress (↧) - decrease cell height, drag the map for continuous usage
+* Align (=) - fit cell's height to the first tagged cell, drag the map for continuous usage
+* Smooth (~) - smooth cell height, drag the map for continuous usage
+
+### Footer buttons:
+* Un-do (↺) - step back, works only for a Heightmap customization
+* Re-do (↻) - step forward, works only for a Heightmap customization
+* Rescaler (⇄) - slider to rescale all cells
+* Condition (_if_) - conditional Height rescaler
+* Discrupt (෴) - randomize all heights a bit
+* Smooth (~) - smooth all heights
+* Clear (⌫) - clear the map
 
 ### Template Editor