diff --git a/ext/VizProject.jl b/ext/VizProject.jl
index b2d04ac2..dedeaad9 100644
--- a/ext/VizProject.jl
+++ b/ext/VizProject.jl
@@ -1,21 +1,4 @@
 
-const MODEL = 1; const GRID = 2; const MESH = 4; const EMPTY = 0
-const REFINEMENTS = 8; const ALL = 15
-
-
-"""
-    plotProject!(proj::Project, plotOptions::Int = 0)
-
-Plot objects specified by the `plotOptions`. Construct the `plotOptions` by the sum
-of what is to be drawn from the choices `MODEL`, `GRID`, `MESH`, `REFINEMENTS`.
-
-Example: To plot the model and the grid, `plotOptions = MODEL + GRID`. To plot
-just the mesh, `plotOptions = MESH`.
-
-To plot everything, `plotOptions = MODEL + GRID + MESH + REFINEMENTS`
-
-Contents are overlaid in the order: GRID, MESH, MODEL, REFINEMENTS
-"""
 function plotProject!(proj::Project, plotOptions::Int = 0)
 
     if isnothing(proj.plt)
@@ -113,15 +96,6 @@ function plotProject!(proj::Project, plotOptions::Int = 0)
 end
 
 
-"""
-    updatePlot!(proj::Project, plotOptions::Int)
-
-Replot with the new plotOptions = combinations (sums) of
-
-    GRID, MESH, MODEL, REFINEMENTS
-
-Example: updatePlot!(p, MESH + MODEL)
-"""
 function updatePlot!(proj::Project, plotOptions::Int)
     if !isnothing(proj.plt)
         proj.plt = Figure(size = (1000, 1000))
diff --git a/src/Viz/visualization.jl b/src/Viz/visualization.jl
index 7ad77524..397dee64 100644
--- a/src/Viz/visualization.jl
+++ b/src/Viz/visualization.jl
@@ -6,5 +6,35 @@ const REFINEMENTS = 8; const ALL = 15
 # Add function definitions here such that they can be exported from HOHQMesh.jl
 # and extended in the HOHQMeshMakieExt package extension or by the
 # Makie-specific code loaded by Requires.jl
+
+"""
+    plotProject!(proj::Project, plotOptions::Int = 0)
+
+Plot objects specified by the `plotOptions`. Construct the `plotOptions` by the sum
+of what is to be drawn from the choices `MODEL`, `GRID`, `MESH`, `REFINEMENTS`.
+
+Example: To plot the model and the grid, `plotOptions = MODEL + GRID`. To plot
+just the mesh, `plotOptions = MESH`.
+
+To plot everything, `plotOptions = MODEL + GRID + MESH + REFINEMENTS`
+
+Contents are overlaid in the order: GRID, MESH, MODEL, REFINEMENTS
+!!! note
+    The function implementation is found in `ext/VizProject.jl`.
+"""
 function plotProject! end
+
+
+"""
+    updatePlot!(proj::Project, plotOptions::Int)
+
+Replot with the new plotOptions = combinations (sums) of
+
+    GRID, MESH, MODEL, REFINEMENTS
+
+Example: updatePlot!(p, MESH + MODEL)
+
+!!! note
+    The function implementation is found in `ext/VizProject.jl`.
+"""
 function updatePlot! end
\ No newline at end of file