diff --git a/scripts/main.jl b/scripts/main.jl
index d4ec92f..45738d4 100644
--- a/scripts/main.jl
+++ b/scripts/main.jl
@@ -22,6 +22,9 @@ params = (
 )
 
 params_obs = Observable{Constants.CombinedPDEParams}(CombinedPDEParams(N, dx, params.Du[], params.Dv[], params.F[], params.k[], params.ϵ[], params.a[], params.b[]))
+lift(params.N, params.dx, params.Du, params.Dv, params.F, params.k, params.ϵ, params.a, params.b) do N, dx, Du, Dv, F, k, ϵ, a, b
+    params_obs[] = CombinedPDEParams(N, dx, Du, Dv, F, k, ϵ, a, b)
+end
 
 U = ones(N, N)
 V = zeros(N, N)
diff --git a/src/visualization.jl b/src/visualization.jl
index 3deea86..3f5b91d 100644
--- a/src/visualization.jl
+++ b/src/visualization.jl
@@ -59,6 +59,9 @@ function param_box!(grid, row, labeltxt, observable::Observable; col=1)
             @warn "Invalid input for $labeltxt: $s"
         end
     end
+    on(observable) do val
+        box.displayed_string[] = string(val)
+    end
 end
 
 function multi_step!(state, n_steps, heat_obs::Observable, params_obs::Observable; step_method=step_gray_scott!, dx=1)
@@ -183,7 +186,6 @@ function build_ui(U, V, param_obs_map::NamedTuple, params_obs, heat_obs)
             return
         end
         x, y = pt
-        println("params_obs[].N, ", params_obs[].N)
         i, j = coord_to_index(x, y, params_obs[].N)
 
         # get corners of square that will get filled with concentration